低原子量的 的英文怎麼說

中文拼音 [dīyuánziliángde]
低原子量的 英文
low atomic weight
  • 原 : Ⅰ形容詞1 （最初的; 原來的） primary; original; former 2 （沒有加工的） unprocessed; raw Ⅱ動詞（原...
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 的 : 4次方是 The fourth power of 2 is direction
  1. In other words, the same amount of energy will be given off when stand - alone nucleons come together to form the nucleus. when the binding energy per nucleon is plotted against the mass number, i. e. total number of protons and neutrons in a nucleus the bottom right figure, it is found that the curve peaks around the mass number 56, i. e. the iron nucleus

    如果把原子核內每顆核粒子的平均結合能又稱比結合能與質量數原子核中的質子和中子的總數繪製成圖右下圖，便可發現圖中曲線在質量數大約等於56即鐵原子核時到達最高點，即是鐵原子核的總體能量最低。
  2. In other words, the same amount of energy will be given off when stand - alone nucleons come together to form the nucleus. when the binding energy per nucleon is plotted against the mass number, i. e. total number of protons and neutrons in a nucleus ( the bottom right figure ), it is found that the curve peaks around the mass number 56, i. e. the iron nucleus

    如果把原子核內每顆核粒子的平均結合能（又稱比結合能）與質量數（原子核中的質子和中子的總數）繪製成圖（右下圖） ，便可發現圖中曲線在質量數大約等於56 （即鐵原子核）時到達最高點，即是鐵原子核的總體能量最低。
  3. The imported transparent glaze fired at lower temperature was analysed semi - quantitatively by adopting emission spectroscope. the stripping of lead and cadmium from this transparent glaze fired at lower temperature in ceramic product was determined by atomic absorption spectroscope. the effect of chemical composition on the stripping of lead and cadmium was analysed. upon the author s opinion, the overproof lead stripping from the imported transparent glaze fired at lower temperature can only be settled by adopting lead - free glaze instead of adopting low - lead prescription. the author succeeded in developing an excellent lead - free transparent glaze fired at the lower temperature of 1000 1050. the success is based on an inquiry into the feasibility of using such new agents of fusion as li2o and sro in replacement of pbo ; and on a study of the effects of the contents of sio2 ， al2o3 ， b2o3and other metallic oxides on such performances of glaze as coefficient of linear expansion, fusion temperature and transparency. it is also based on an analysis of coefficient of linear expansion of blank and glaze on an analysis of coefficient of linear expansion of blank and glaze on their correlation ; and on a study of technology for preparing glaze

    採用發射光譜儀對進口低溫透明釉進行半定量分析，並用原子吸收光譜儀測定其陶瓷製品的鉛、鎘的溶出量，分析化學成分對鉛、鎘溶出量的影響.結果表明，進口低溫透明釉採用低鉛配方不能解決鉛溶出量的超標問題，只有採用無鉛釉才能解決.探討用氧化鋰和氧化鍶等新型熔劑完全代替氧化鉛的工藝，研究釉料中氧化硅、氧化鋁、氧化硼和各種金屬氧化物的含量，對釉的線膨脹系數、熔融溫度和透明度等性能的影響.分析坯料、釉料的線膨脹系數及其相互關系和釉料制備的工藝，研製出優質的1000 1050低溫無鉛透明釉
  4. How to decide atomic ground state problem has been studied based on lowest energy principle, hund rule, and pauli exclusion principle. it is summarized to two methods

    摘要以能量最低原理、洪特定則和泡利不相容原理為依據，對原子基態的確定問題進行了研究，得到了公式法和圖表法兩種確定原子基態的方法。
  5. By using the multi - configuration dirac - fock ( mcdf ) method, the effects of relaxation and correlation on the transition energies and probabilities of electric - dipole allowed ( el ) resonance and intercombination transitions for 2p53s3 - 2p6 in neutral neon have been systematically studied firstly. and the results of the transition energies and probabilities ( lifetimes ) in length and velocity gauge have been presented. during the calculation, in order to consider the rearrangement effects of the bound - state density and some important correlations, the asfs of transition initial - and final - states were divided according to their angular - momentum and parity and calculated, and different number of csfs were included in the expansion of asfs

    本文利用多組態dirac - fork （ mcdf ）理論方法，通過對輻射躍遷初、末態電子波函數的獨立計算以及在原子態波函數的展開中考慮不同數量的組態波函數，系統地研究了弛豫和相關效應對中性ne原子2p ~ 53s ~ （ 1 . 3 ） p _ 1 ~ o - 2p ~ 6 ~ 1s _ 0電偶極共振和復合躍遷的能量以及躍遷幾率的影響，給出了長度和速度兩種不同規范下激發態的能量和輻射壽命；以中性ne原子的研究為基礎，進一步研究了類ne等電子系列離子（ z = 11 - 18 ）較低的激發組態2p ~ 53s和基組態2p ~ 6的能級結構以及各能級間的輻射躍遷特性。
  6. With the increase of substrate salinity, the accumulated sodium and chloride increased. as a result, all tissues had considerablly lower osmotic potentials than that of the solution on which they were grown at 60 day after planting. changes in length, dry weight, water content, ion concentrations, osomotic potential, ion content of hypocotyls during culture indicated that viviparous hypocotyls not only afforded nutrition for seedling growth, but also reserved ions, thus charged the balance of ion concentration and osmotic potential of the seedling

    鹽脅迫下幼苗單株葉面積下降的程度大於光合速率的降低，葉面積的減小是導致減產的主要原因；木欖幼苗各組分中的離子濃度以及含量隨栽培時間而變化；栽培初期剛萌根時，幼苗原胚軸中的離子滲漏到培養液中；此後隨著根系的發育以及芽的生長，幼苗轉為從培養液中吸收離子，並以吸收na 、 cl離子為主。
  7. Some weapons designers have argued that low - yield earth - penetrating nuclear arms, with explosive yields ranging from the equivalent of 10 to 1, 000 tons of tnt, would provide unique tactical and strategic capabilities while minimizing unwanted collateral effects ? in particular, the atomic fallout typically generated in abundance by more powerful bombs

    某些武器設計者表示，爆炸當量相當於10 ~ 1000噸黃色炸藥的低當量鉆地核彈，具備獨特的戰術及戰略功能，並可將副作用減到最低，尤其是降低威力較大的核彈通常會在周圍造成的原子落塵。
  8. The measuring of low - temperature specific heat is an important and effective method to study the structure of electronic states, the atomic vibration of lattice, phase transition and structure of grain boundary

    低溫比熱測量是研究固體的電子能態結構、原子點陣振動狀態、相變、界面結構等信息的重要的且很有效的手段之一。
  9. The result showed that sea cucumber polypeptide has no obvious effect on body weight in mice, significantly prolongs the time of loaded - swimming and rolling stick, stringly degrades the content of blood urea nitrogen and increases the content of hepatic glycogen of postexercise mice

    結果表明，低分子量海參肽對小鼠體重無顯著影響，但能明顯延長小鼠的負重遊泳時間和轉棒時間，顯著降低運動后小鼠的血尿素氮含量，同時提高了肝糖原含量。
  10. The main work is as follows : 1. an error resilient algorithm to collaborate multiple description coding ( mdc ) and error concealment ( ecn ) is presented. the strategy of this method is to reconstruct the low quality image followed by recovering the lost wavelet tree with error concealment method when end - user receives few descriptions

    在誤碼環境下，要保證解碼端重構圖象的質量，就要綜合採用多種抗誤碼方法，本文對差錯復原技術的綜合應用進行了研究，具體內容如下: 1 、提出了圖象多描述編碼與差錯隱藏相結合的差錯復原演算法，在接收端接收到的描述較少時，首先根據接收到的若干描述重構低質量的圖象，然後採用差錯隱藏方法恢復丟失的子波樹。
  11. The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides

    進一步對xynba進行了脫糖基化處理得到xynbb ，其分子量恢復到23kd ，證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現：三種酶的最適ph差異不大， xynb和xynba均為5 . 2 ， xynbb為5 . 0 ； xynb和xynba的最適溫度均為60 ， xynbb降為50 ：在耐熱性上， xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ； xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ，明顯低於原酶的比活2814 . 45iu mg ； xynb和xynba的km值相當，分別為21 . 56 （ g kg ）和20 . 87 （ g kg ） ，而xynbb的km值較大為27 . 10 （ g kg ） ； xynba和xynbb的vmax相差不大，分別為4568 mol mg ? min和5329 mol mg ? min ，明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性，對胃蛋白酶和胰蛋白酶有很好的抗性，且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現：以樺木木聚糖為底物時，酶解產物主要為木三糖和木四糖，含量分別為68 . 43和16 . 50 ，另外還含有11 . 79的木二糖；以玉米芯木聚糖為底物時，酶解產物主要為木二糖和木三糖，含量分別為81 . 78和11 . 55 。
  12. ( 4 ) the mn electron orbits of stoichiometric limn2o4 became degenerated and the electrons settled in disordered states at 320k ~ 280k and therefore the resistance of the material increased slowly with the temperature decrease

    （ 4 ）化學量的limn _ 2o _ 4材料，在320k 280k的范圍內mn原子軌道電子態簡並，電子處于無序狀態，材料的電阻隨溫度的降低，緩慢增加。
  13. A 21 - centimeter photon is much less energetic than the photons typically emitted by hydrogen as electrons jump between orbits

    21厘米光子的能量遠比一般氫原子因電子變換軌道而發射的光子來得低。
  14. Design engineers now selecting pmbldc motors over conventional dc or induction motor drives for the following reasons : 1 ) the absence of brushes results in an essentially maintenance free operation and eliminates the undesirable effects of commutation such as sparks, brush - loss, radio - frequency interference, etc. 2 ) the low inertia of the rotor enhances the quality of the mechanical response of the motor, shortening the acceleration and deceleration time. 3 ) utilizing rare - earth permanent magnet materials with high coercive force results in substantially higher efficiency than their counterpart with brushes of the same size. 4 ) because of the absence of commutation segments, the stator construction is simple

    現在的工程師們更為青睞永磁無刷直流電動機是因為以下幾點原因： （ 1 ）去除了電刷的永磁無刷直流電動機徹底地免除了維護而且消除了我們不希望的由於換向帶來的火花、電刷損耗以及無線電干擾等等； （ 2 ）低轉動慣量的轉子提高了電機機械響應的質量，從而縮短了電機加速和減速的時間； （ 3 ）高矯頑力稀土永磁材料的使用使得同樣尺寸的永磁無刷直流電動機比傳統的直流電動機效率高； （ 4 ）由於沒有機械換向部分定子的結構簡單了。
  15. The results show that when the concentration of hmi ( hg2 + ) in influent water is every low, the effect of hmi removal by wbaer from dk is much better than cations exchange resins. with cations ( ca2 +, mg2 + ) at high concentration in raw water, wbaer has better selectivity to hmi in water, however the selectivity of cations exchange resins is worse. the anions in raw water such as cl - which is able to react with hmi can make cations exchange resins lose the capability of hmi removal, but it has no effect on wbaer ( d301g )

    結果表明：當進水中重金屬離子（ hg2 + ）濃度較低時，弱堿性陰離子交換樹脂對飲用水中hg2 +的去除效果要明顯優于陽離子交換樹脂；當原水中含有相對較高濃度的陽離子（ ca2 + 、 mg2 + ）時，弱堿性陰離子交換樹脂對水中的重金屬離子具有很高的選擇去除性，而陽離子交換樹脂的選擇去除性卻很差；天然原水中能與重金屬離子（ hg2 + ）發生絡合反應的陰離子（如： cl ） ，可以使陽離子交換樹脂喪失了對水中微量重金屬離子（ hg2 + ）的去除作用，而對弱堿性陰離子交換樹脂（ d301g型）去除水中微量hg2 +的影響卻很小。
  16. The voltage of lithium - intercalation reaction, impedance and structural stability of intercalation - type cathode material were analysed and calculated. theoritical results show that the reaction voltage depends on the content of lithium and the bond energy, and that the key ways to lower the electrode impedance are to increase the electronic conductivity of the electrode and the diffusion coefficient of lithium ion in the host and to decrease the size of powder. in addition, the thermal stability of lithium - insertion structure can be improved by using crystallographic co - lattice theory and doping treatment

    本文從嵌入式陰極材料的嵌鋰反應的電壓、阻抗及結構穩定性的分析和理論計算著手，得到了電壓取決于基體中各種離子間的鍵能及鋰含量、降低電極阻抗的關鍵是提高電子型導電性和li ~ +在基體中的擴散系數及減小粉末粒度的理論依據及其利用晶體的共格原理和摻雜改性的方式來提高材料嵌鋰結構的熱穩定性的設計思路。
  17. Based on the comparison and analysis of the secondary electron emission coefficient of two kinds of emitter gaas in theory, it is concluded that when primary electron energy is lower the deviation of secondary electron emission coefficient of two kinds of emitter gaas will become smaller, while when primary electron energy is higher the deviation will increase

    通過對兩種負電子親和勢二次電子發射材料的二次電子發射系數的理論值進行比較和分析，得出：當原電子入射能量較低時，兩種材料的二次電子發射系數差值較小；當原電子入射能量較高時，兩種材料的二次電子發射系數差值較大，而且隨著原電子入射能量的升高，兩種材料的二次電子發射系數差值也在增大。
  18. Using the expressions of the probabilities of finding atom b in excited state or ground state, the average values of the momenta and the kinetic energies of the entangled atoms system are easily obtained

    第三章則根據求出的系統的量子態，進而得出原子處于高能態和低能態的幾率及原子的平均動量。
  19. Organic sulfides are to be oxidised to form polymers containing s - s bonds as charging, and polymers will be reduced to their low molecular monomer as discharging

    這類物質在電池充電時，被氧化為含有s - s鍵的聚合物;在電池放電時， s - s鍵斷裂，聚合物被還原為低分子量的有機硫化合物單體。
  20. Tem reveals that the complex possessed good dispersibility in the system and the status varied reversibility with the ph value and the size of the complex is within 20 ~ 40nm. the complex was characterized by ft - ir, uv - vis, fluoresence and electrical conductivity methods. paa - ag nanospheres were also synthesized by coordination of polyacrylic acid and silver ( i ) ion and queued in line in lr

    本論文還以低分子量的聚丙烯酸和硝酸銀為主要原料，通過控制體系的ph值合成響應環境ph值變化的聚丙烯酸銀納米微球和納米柱狀物，通過tem觀察尺寸達20 - 40nm ，用ir 、 uv - vis 、熒光、電導率法分析聚丙烯酸和銀的配位作用、所形成配合物的組成與結構，並將聚丙烯酸和硝酸銀置於「線性反應器」中進行配位聚合，合成出線性排列的paa - ag納米微球。
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