自然增加率 的英文怎麼說
中文拼音 [zìránzēngjiālǜ]
自然增加率
英文
natural rate of increase-
But the play ' s complex view of black self - esteem and human solidarity as compatible is no more " contradictory " than du bois ' famous, well - considered ideal of ethnic self - awareness coexisting with human unity, or fanon ' s emphasis on an ideal internationalism that also accommodates national identities and roles
翻譯：二十世紀外出工作的已婚女性數量增多，與其說與家務勞動機械化和女性休閑時間增加有關，還不如說是因為她們自己的經濟需要使然，還有就是婚姻率很高，縮減了單身女工的數量，而過去在很多情況下僱主只願意雇傭單身的女性。The product quality faces up to enormous domestic and international markets challenge and the peasants face up to the slow increasing of their incomes. the shortage of water resource is more serious for the planted system, climatic change and low utilization ratio. cultivated land resource is reducing rapidly for nature factors and urbanization process, etc. the analysis results indicate the resour ces utilization mode in the hhh plain is still high investment, high - energy consumption, and grievous pollution
農產品生產在我國佔有絕對優勢，但其受結構調整的影響也發生了波動性變化，其產品質量面臨著國內外市場巨大的挑戰，農民收入也面臨著增長緩慢的挑戰；水資源受種植制度、氣候變化及利用率低等多種因素的脅迫作用，嚴重短缺；耕地資源近年來大量減少，受自然及城市化進程等因素的影響，稀缺程度加大。His natural breathing pattern will increase in tempo and depth, causing a greater but inefficient exchange of respiratory gasses
他自然的呼吸模式將加快和加深，導致強度增加但是效率降低的呼吸方式。According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d
本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。The ultimate purpose of establishing the irrigation information management system is to accomplish the automation and information of the irrigation process, to promote the efficiency of water use, to increase the yield and improve the quality of crop, which is the inexorable trend of the future development of the irrigation agriculture
建立灌溉信息管理系統的最終目的是實現灌溉過程的自動化和信息化，提高水資源利用效率，增加作物產量，提升作物品質，這也是未來灌溉農業發展的必然趨勢。The bridges will gradually wear down under the circumstances of the natural environment, such as the atmosphere erosion, the changes of the temperature and the humidity, and applied environment, such as the loading, the fatigue of the material and the structure
橋梁長期在自然環境（大氣腐蝕、溫度、濕度變化）和使用環境（荷載作用與頻率的增加、材料與結構的疲勞）的作用下，會出現逐漸退化的趨勢。The maize and neorgelia cawlinae meyendor ffii were treated with uv - b radiation with the intensities of 0uw. cm - 2 ( ck ), 10uw. cm - 2 ( r1 ) and 15uw. cm - 2 ( r2 ), the duration of uv - b treatment were ten hours per day ( from am8 : 00 to pm18 : 00 ). the effect of uv - b radiation on the photosynthesis was studied, and the results showed as follows : ( l ) the effects of uv - b radiation on photosynthesis of maize and neorgelia cawlinae meyendor ffii the results of the experiment show that the photosynthesis of maize seedlings was restrained because of the decrease of chlorophyll contents activity of hill reaction stamotal conductance activity of pepcase and atp content caused by increased uv - b radiation, and it was more restrained under higher uv - b radiation. though the activities of rubpcase and pepcase were decreased, the chlorophyll contents activity of hill reaction stamotal conductance of mature maize were not affected, therefore the photosynthesis of grown - up plant was not affected
Cm ~ （ - 2 ） （ r2組）的uv - b輻射，每天處理10小時（ 8 ： 00 ? 18 ： 00 ） ，直至玉米成熟，以自然光照為對照（ ck組） ，對增強uv - b輻射條件下玉米和紅彩鳳梨光合作用的響應作了深入的研究和探討，結果如下： （ 1 ） uv - b輻射對玉米和紅彩鳳梨光合作用的影響研究結果表明，因增強uv - b輻射降低了玉米幼苗葉片的葉綠素含量、 hill反應活力、氣孔導度、 pepcase活性和atp含量，從而影響了玉米幼苗的光合作用，使其光合速率下降，且隨uv - b輻射強度的增加其影響程度加大；而玉米成株在增強uv - b輻射環境下其葉綠素含量、 hill反應活力、氣孔導度等未受影響，雖然其rubpcase活性和pepcase活性有所下降，但總體上其光合作用受到的影響不大。Mrs products of the jujube tree, leaf, fruit shrink, fruit, dates and other physiological diseases of rust have a strong inhibitory effect. may increase their resistance, and significantly reduce the incidence of pests and diseases, improve the resistance of jujube, drought and cold. the ability to resist natural disasters such as high temperature, the use of fertilizer can enhance pollinated fruit to prevent falling, and fruit drop. color, luster beautiful skin without splitting out, sugar, improve quality and significantly increase fruit can increase output 10 - 25 %. sweeter 3 - 5, and significantly reduced pesticide use
本產品對棗樹的黃葉、小葉、縮果、裂果、棗銹等各種生理性病害的發生有極強的抑制效果，可增強其抗逆性，明顯減少病蟲害的發生，提高棗樹的抗病、抗旱、抗寒、抗高溫等抵抗自然災害的能力，使用后可提高肥效，提高授粉座果率，防落花、落果、著色好，表皮光澤艷麗而不列裂，增糖，提高品質，果個明顯增大，可提高產量10 - 25 % ，增加甜度3 - 5度，並可大幅度減少農藥之使用。The situation of yellow river dry - up is gradually rigorous. it has being influenced the development of the lower reaches of yellow river and the implement of strategy on developing the western areas. based on analyzing the harmfulness, causes of its dry - up from the factors of physical geography and human activities, this article put forward the engineering and non - engineering control measures for controlling yellow river dry - up : strenghtening the unified management and despatch for its water resource ; resorting to compulsion to save water ; quickening key projects duild for the addition of balance and water storing capacity ; increasing synthetical administer to ecological environment ; increasing effectivesupply of water resource
黃河斷流形勢日趨嚴峻，斷流的頻率增加、時間延長、里程增大，嚴重製約了黃河流域尤其是黃河下游地區的可持續發展和開發大西部戰略的實施.在分析黃河斷流造成的危害、黃河斷流的自然因素和人為因素的基礎上，提出了加強黃河水資源的統一管理和調度、採取強制措施厲行節約用水、加快骨幹工程建設增加調蓄能力、加大流域生態環境綜合治理的力度、適時開源增加水資源的有效供給等工程性和非工程性措施，以防治黃河的斷流According to our analysis, the farmers in quzhou are in the second phase, which means they already have enough food and put much more inputs for earning high yield and high income. ( 4 ) the ground water table was getting down, caused by precipitation decreasing, no river water coming due to the upstream reservoir, complete drainage in rainy season and irrigation using groundwater
（ 4 ）自然降水量的降低、上游水庫的攔蓄，使平原失去了獲得水源的機會；內部防洪排瀝體系的完善，致使入滲補充地下水減少；耕地灌溉率的增加，導致農業用水量不斷加大，這些因素共同作用使區域水資源失去平衡，引起地下水位的下降，從而促使鹽漬土表層脫鹽。The international commission for radiological protection icrp estimates that an additional death rate of 12. 5 persons per million for every msv of exposure. this means that if a million people were given 2 msv of radiation, the expected additional death rate from cancer would be 25 additional persons or 230, 025 instead of 230, 000 persons out of a million dying from naturally occurring cancer
據國際放射防護委員會估計，每一百萬人每接觸到一毫西韋特輻照量所引致的死亡率增幅為12 . 5 % ，換言之，如一百萬人接觸到兩毫西韋特的輻射，因死亡的人數估計會增加二十五人，亦即每一百萬人會有二十三萬零二十五人自然死於癌癥。Abstract : the in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency, therefore measures for technical reform are offered, including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging
文摘:針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況，提出了若干技術改造措施包括，增大對流管表面積以增大對流段的熱負荷；增加輻射管的換熱面積；修正煙囪高度；換用新型燃燒器，變自然通風為強制供風，以增大燃燒器的發熱量，減小過剩空氣系數，節省燃料2 % 3 % ；在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度；採用高溫輻射塗料增強輻射換熱效果，從而增加熱源對爐壁的輻射傳熱量和爐管的傳熱量等。The in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency, therefore measures for technical reform are offered, including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging
針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況，提出了若干技術改造措施包括，增大對流管表面積以增大對流段的熱負荷；增加輻射管的換熱面積；修正煙囪高度；換用新型燃燒器，變自然通風為強制供風，以增大燃燒器的發熱量，減小過剩空氣系數，節省燃料2 % 3 % ；在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度；採用高溫輻射塗料增強輻射換熱效果，從而增加熱源對爐壁的輻射傳熱量和爐管的傳熱量等。Walk at a pace that gradually increases breathing rate and heart rate. for the right pace, walk fast enough to the extent that you are breathing faster but still can talk while walking
呼吸與心跳率應自然的慢慢增加。適當的步速是走路時呼吸加快，但仍能說話。From the varieties of the natural corrosion potential of aluminum alloys, it is deduced that the gradual dissolution of natural passive state film of the alloys brings about high - speed enhancement in the corrosion rate of the alloys
從自腐蝕電位的變化規律可以推斷，在腐蝕的初期階段，鋁合金表面自然生成的鈍化膜逐漸溶解，使鋁合金腐蝕速率快速增加。The breathing and heart rates should increase slowly. suitable pace means the speed will increase the breathing rate yet you are still able to speak. keep your breathing natural, and adjust it with different pace
呼吸與心跳率應自然的慢慢增加，適當的步速是走路時呼吸加快，但仍能說話，並須保持呼吸自然，因應不同步行強度作有規律的調整A topology of asymmetrical half bridge soft switching is researched in this thesis, which has inherent zero voltage switching ( zvs ) capability and thus potentially higher efficiency by its resonating of the leakage of power transformer with the parasitic capacitances of the power mosft switches, whereas it does n ' t raise the expense of the converter these studies in the thesis have been done as follows : ( 1 ) the topology of asymmetrical half bridge is introduced, and its principle and the relation of duty cycle and input voltage and output voltage discussed, the method of eliminating the deflection magnetism is also brought forward
雖然，軟開關技術能夠實現功率變換器的小型化、模塊化等，但是，電路變得更加復雜，使得中小功率的變換器的成本增加，往往不利於商業競爭。本文研究了一種零電壓的不對稱半橋拓撲結構，它可以在不增加電路成本的基礎上，利用電路自身的特點，實現軟開關。本文所做的主要工作如下： （ 1 ）對不對稱半橋主電路工作原理進行分析，給出了占空比與輸出電壓、輸入電壓的關系以及消除變壓器偏磁的方法。Meanwhile, if the new technology can reduce the cost sharply, the social welfare when two firms adopt the new technology may be lower than that when only one firm adopts it. this means that stronger incentive regulation and asymmetric regulation induce “ too many innovation ”. on the other hand, if the innovation is expensive and risky, and imitation is easy, the stronger incentive regulation and asymmetric regulation may increase the imitation profits of inefficient firm, so that it would adopt the waiting - imitation strategy, and this would reduce the aggressive innovation profit of efficient firm and prevent either firm from innovating
此時，若新技術能夠大幅降低生產成本，則兩個廠商都採用新技術時的社會福利可能會低於單個廠商採用新技術時的社會福利，即強激勵性規制政策和不對稱規制政策會引發「技術創新過度」 ;反之，當創新成本很高，且風險較大，模仿又比較容易時，強激勵性規制政策和不對稱規制政策可能會增加低效率廠商的模仿收益，從而使其嚴格採取等待-模仿策略，這會減少高效率廠商的進攻性創新收益，從而削弱它的創新動力，並最終阻礙自然壟斷產業的技術進步，此時，強激勵性規制政策和不對稱規制政策導致了「技術創新不足」 。Based on these advantages we analyze the performance of constant - power variable - rate m - qam schemes for spectrally efficient data transmission over nmf channels. by introducing the adaptive modulation approach, we gain two things : 1 ) the error rate is kept at a constant level. 2 ) the achievable spectral efficiency comes within 5 db of the shannon capacity limit. at the last chapter, the presentation of a single base station and a single mobile scenario proved the feasibility of adaptive schemes
然後作者的精力轉入通道的自適應方案的研究中，首先通過研究發現nakagami衰落因子的適當調整可以近似於常見的瑞利衰落和萊斯衰落，接著研究在無線通道中採用三種不同自適應方案時的通道容量，研究表明速率的調整是增加通道容量的關鍵，在此基礎上，著重研究了離散變速率qam的情況，表明這種調制方案無論在頻帶利用率還是在系統平均誤碼率比其它情況提高很多。But along with the population increase, economic development and natural condition change, the dry and water deficient situation becomes increasingly serious, the drought occurrence frequency, scope and impacting area expand successively, in the meanwhile, some structural and systematic obstacles existed in long - term drought fighting work have emerged and the drought fighting work faces unprecedented trial
但是隨著我國人口增加，經濟發展和自然條件變化，我國乾旱缺水的形勢日益嚴峻，旱災發生的頻率、范圍和影響的領域不斷擴大，同時，長期抗旱工作中存在的一些體制、制度性障礙也顯露出來，抗旱工作面臨前所未有的考驗。分享友人