under water resistance 中文意思是什麼

under water resistance 解釋
潛航阻力
  • under : adv 1 在下，從屬著，服從著。 bring under get under keep under 等〈參看各該動詞條〉。 The ship wen...
  • water : n 1 水；雨水；露；〈常作 pl 〉 礦泉，溫泉；藥水。2 〈常 pl 〉水體；水域；水道；海；湖；河；海域；...
  • resistance : n. 1. 抵抗，反抗，抗拒，抵禦；敵對，抵抗力，反抗力，阻力，【生物學】抗病性。2. 【電學】電阻；阻抗；電阻器。
  1. Under cold stress condition, cold hardiness of 12 vitis species including 45 lines ( cultivars ) was identified based on the leakage of electrolytes, water loss ratio and percentage of bud bursting on the stem and estimated the hardiness resistance of 12 v. species by the average of subordinate function ( sf )

    摘要在冷凍脅迫條件下，測定了葡萄屬12個種45個株系枝條的膜透性變化、含水量動態變化及萌芽能力3項指標，並以種內不同株系間3項指標的平均值綜合評價了12個種的抗寒性。
  2. In recent years, the water - saving and control irrigation technique of rice has diverted from plot experimental and demonstration to lare scale. and has got remarkable economic and social benefits. amed at the characteristics of this irrigation area, optimal selection for water - saving techniques of rice, deciding the amout of leaching water and irrigation modles, investigating the adaptability of the water - saving and control irrigation technique in saline land. studying the increase in production mechanism of the technique are important to extend the technique, to better and develop saline land as well as slick spots. according to the results of field experiments, optimization study was conducted on the water - saving irrigation technique of rice in saline land, the effects of different water - saving irrigation techniques on the physiological indexes and yield of rice were systematically analyzed. by using mutiplepurpose fuzzy optimization method, better. water - saving irrigation technique was selector out, that is. the control irrigation technique in rice. the mechanism of it was analyzed from the aspect of the physiological and ecological saving water of rice to provide the implemental process and technical point ; throgh the quantitive analysis and comparision on control irrigation and control class ( flood irrigation ), high production and quality mechanism of the technique was analyzed in terms of physiology indexes of rice, the variation of soil moisture, the pest resistance and the lodge resistance, the change of soil temperature in paddy fields. the yield constitutive factors, the quality of rice and so on. in saline land. control irrigation and intermittent leaching modles were adopted to validate the adaptability of the technique in irrigation of rice in saline land, to analyze rice ' s physiological - ecological indexes and the change of soil salt content under the conditions of control irrigation leaching of rice and and to provide control irrigation and combined modle of intermittent leaching to adapt to different conditions

    本文從試驗及試驗資料入手，取得以下主要成果和結論：對鹽堿地水稻節水灌溉技術進行優化研究，系統地分析了不同節水灌溉技術對水稻生理指標及產量的影響，採用了多目標模糊優化的方法，對灌水技術進行綜合評判，優選了節水灌溉技術，論證該地區宜採用水稻控制灌溉技術；闡述控灌技術通過調節和控制水稻的需水規律，降低水稻高產情況下的無效水量消耗，從水稻生理、生態節水兩方面分析了控灌技術節水機理，針對性地總結出水稻各生育期實施節水控灌技術的步驟及技術要點；通過控灌與淹灌的定量對照比較，從根系、莖蘗、冠層葉片及綠葉動態到株高，土壤水分變化，抗病蟲害、抗倒伏能力，稻田土溫變化，產量構成因素及稻米品質等諸多方面進行動態比較，分析控灌技術高產優質機理；在鹽堿稻地採用控制灌溉+間歇淋洗模式，跟蹤測試田間水鹽變化狀況，驗證控制灌溉技術在鹽堿地區水稻灌溉中應用的適應性，通過分析水稻控制灌溉淋洗條件下水稻生理生態指標，提出優化控制灌溉+間歇淋洗組合模式，為進一步在高礦化度地區試驗水稻控灌技術奠定基礎。
  3. The products is of high water hydrophobe device usedin suitable and has the characteristics of aging resistance, resistance, tracking resistance, and corrosive resistance. it can withstand high bent load, strong impact force fn12 - 12 series indoor use high voltage load switch fn12 - 12 and fn12 - 12r is of three phases indoor use ac high voltage load switch for breaking and making the circuit of 50hz, 12kv system under rated loading

    Fn12 - 12和fn12 - 12r組合電器是額定電壓12kv額定頻率50hz的三相高壓開關設備用於分合負荷電流閉環電流空載變壓器和電纜充電電流關合短路電流配裝接地開關的負荷開關，可以承受短路電流
  4. Nevertheless, the water evaporation from the water bath, condensation on fabric surface and vapor transmission through the fabric is greater and the moisture vapor resistance smaller under the subzero ( - 20 ) climate than those under the conventional ( 20 ) climate

    在低溫環境下（ - 20 ） ，水浴的水氣蒸發率（模擬人體出汗） 、織物水凝結率和透過織物的水氣蒸發率大，織物濕阻小，表明了織物表面濕阻與環境濕度是相關的。
  5. Under the different freezing - thawing cycle circumstance, three factors of water binder ratio, air content and mineral admixture are analyzed by using the method of orthogonal table. the test results show that the chief influencing factor is the water binder ratio in water freezing - thawing cycle circumstance, and in salt freezing - thawing cycle circumstance is the air content. this could illustrate that entraining air into concrete can improve the frost resistance of concrete effectively in salt freezing - thawing cycle

    分析了在純水和3 . 5 % nacl溶液中受凍后，水膠比、含氣量和摻合料對混凝土飽和系數及變化速率的影響規律，試驗結果表明水膠比對混凝土水凍時的飽和系數及變化速率影響顯著，而鹽凍情況下含氣量則是主要影響因素，說明引氣能顯著提高混凝土的抗鹽凍性能。
  6. In 2000 passed theiso9001 quality system authentication, the main camp product includes : the filter, filters the separator, the oil - water separator, thesilencer, cuts shui qi, the respiration valve, the fire resistance, the hydraulic pressure safety valve, kong leijian, the metal vlexiblehose, the ripple compensator, fluctuates under the oil installment, the pot the sampling, the crane tube, lightly falls the springboard, the steel structure trestle, the liquid level indicator, the oilinterceptor, the heater, regards product and so on boundary

    2000年通過了iso9001質量體系認證，主營產品有：過濾器、過濾分離器、油水分離器、消聲器、切水器、呼吸閥、阻火器、液壓安全閥、孔類件、金屬軟管、波紋補償器、浮動出油裝置、罐下采樣器、鶴管、輕落跳板、鋼結構棧橋、液面指示器、阻油器、加熱器、視境等產品。
  7. Good alkali resistance, dissolved only in hot strong acid, good thermal endurance ; it begins to decompose into red pigment when losses water of crystalliza - tion under temperature higher than 150

    耐堿性、耐于熱熱的強酸，耐熱度較高，溫度超過150以上失去結晶水開始分解為紅色顏料。
  8. The enhancement of water wettability, better optical transparency, and higher wear resistance have been found after the samples were treated under high rf power, bias voltage and gas pressure conditions

    在較高射頻功率、基板負偏壓、反應氣體壓強狀態下制備膜層的潤濕性、耐磨損性較好，而光學透過率較低。
  9. If an arm is stretched forward under water resistance is increased and a reaction force backward is developed, both of which would contribute to negative acceleration

    如果手臂在水中是向前伸展則阻力會隨之增加而向後方的反作用力也會出現，二者都會產生負加速度。
  10. In water, the apparent viscosity of composite particles is much lower than that of uncoated graphite with the same solid content ; composite particles have good dispersion effect under different ph value with dispersant agent of sodium hexametahposphate. through the analysis of tg - dtg curve, the oxidation resistance of composite particles has been greatly improved

    復合粉體水漿體的表觀粘度比相同質量固含量的未處理石墨大大降低，而且在以六偏磷酸鈉為分散劑時，復合粉體在不同的ph值條件下都取得了很好的分散效果。
  11. Based on experimental result of energy dissipation and scour protection for downstream of spillway at yu jian kou power station, this paper discusses the flow characteristics, aerated characteristics of flaring gate pier for low dam pivot, the influence on pressure of dam surface and the result of energy dissipation for flaring gate pier. it is put forward to be an available method to solve the problems of energy dissipation and scour protection for depth of covering strata, poor geologic condition and weakness of resistance to scour capability under reasonable use of flaring gate piers and auxiliary dissipaters. thus, a new method is obtained for release of floodwater and energy dissipation of low dam pivot which are provided with low water head, great unit discharge and low froud coefficient. it may be used for reference for design and test workers

    結合魚劍口電站壩下消能防沖試驗研究成果，對低壩樞紐寬尾墩的水流特點、摻氣特性、寬尾墩對大壩泄流能力和壩面壓力的影響以及寬尾墩的消能效果等問題進行了初步探討，提出了合理地使用寬尾墩結合輔助消能設施可有效地解決壩下覆蓋層深，地質條件差，抗沖能力弱的低壩樞紐的消能防沖問題，從而為具有低水頭，大單寬流量，低佛氏數特點的低壩樞紐泄洪消能開辟了一條新途徑，可供有關低壩樞紐設計與試驗工作者借鑒與參考
  12. The thermal - wet comfort proprties of textiles under the conditions that the environment temperature is higher than that of human body ( called “ reverse temperature field ” ) are examined in this paper. four quanties ( i. e. equivalent thermal resistance, thermal resistance, resistance to water vapour transmission and air permeability ) were suggested as the physical indexes of thermal - wet comfort properties of textiles under this condition. their special meanings under this condition were explained also. the colthing microclimate testing meter was used to determine the indexes of seven different kinds of textiles. the statistical analysis was applied to analyse the relationship between these indexes and the results from wearing - clothing test. some elementary results were obtained

    研究了在環境溫度高於人體體表溫度（稱逆溫差）條件下，服裝用織物的熱濕舒適性能，提出使用當量熱阻、熱阻、濕阻及透氣率作為在此條件下織物的熱濕舒適性物理指標，指出了在此條件下其特殊含義.並且用織物微氣候儀測試了此條件下7種織物的熱濕舒適性指標，與對比穿著試驗的結果進行了分析，得出了一些初步規律
  13. The experimental results of the flow characteristics of the mmc heat sink indicate that the critical reynolds number signifying the transition from laminar flow to turbulent flow is in advance ; under the same experimental conditions, the variation in entrance direction of the microchannel inlet and outlet has little effect on the microchannel ; the experimental values of the friction factor of the de - ionized water in a microchannel agree well with those calculated using the theoretical laminar formula ; furthermore, a comparison of the experimental results and simulation results shows that navier - stokes equation and rng - turbulence model can be used to model the laminar and turbulence flow regions in a microchannel ; meanwhile, the correlations of the flow resistance in the turbulent flow regions for the de - ionized water as the working fluids are obtained from experiments

    對歧管式單通道熱沉流動特性的研究結果表明，微通道內流體流態由層流向紊流轉變的臨界雷諾數提前;改變流體的進出口方向對熱沉總壓降造成的影響很小;摩擦系數的實驗值與理論值較接近;數值模擬結果能夠與實驗值較好吻合;並由實驗給出了紊流區流動阻力的實驗關聯式。此外，選用十二烷基硫酸鈉（ sodiumdodecylsulphate ， sds ）以及烷基多糖苷（ alkylpolyglycoside ， apg ）作為減阻添加劑，研究了表面活性劑添加對微通道流動特性的影響。
  14. Textiles. physiological effects. measurement of thermal and water - vapour resistance under steady - state conditions sweating guarded - hotplate test

    紡織品.生理效應.在穩態條件下耐熱和水蒸氣特性的測量汗蒸防熱板試驗
  15. It provides reference in order to evaluate the resistance function of clay layer in under - water honing

    為今後評價黏土層在水體下採煤中的阻隔水作用提供理論參考。
  16. The earth dam had in the past usually been under severe impact during violent earthquakes. the rockfill dam with clay core in mania multi - purpose water project is constructed in high intensified areas, it is therefore imperative to have a thorough knowledge about the earthquake resistance of the dam

    以往土石壩在強震中曾遭受過嚴重的震害，滿拉水利樞紐工程土心墻堆石壩建立在高烈度區的土石壩，因此，了解和掌握滿拉大壩的抗震性能是非常必要的。
  17. Under this condition, the article elaborates the development and selection of container ship types and propulsion plant for the lines from chongqing, wuhan and nanjing to yangshan deep water container terminal, respectively, based on related knowledge of ship design, ship resistance, marine power plant and ship technical economy analysis

    在此背景下，文中應用船舶設計、船舶阻力、船舶動力裝置及船舶技術經濟論證等相關知識，以規劃中的長江干線航運環境為基礎，探討了重慶、武漢、南京到洋山港航線的集裝箱船船型、動力裝置的開發與優選。
  18. The instrument adopts the theory of ultrasonic echo for quickly scanning river bed topography under water and employs the principle of resistance for measuring river bed topography upon water and shallow beach topography, which increases the measuring speed effectively and decreases the disturbing influence on river bed

    該儀器採用超聲測量原理實現了水下地形的無接觸快速掃描測量，採用阻抗原理實現了洲灘、邊灘、淺灘的地形測量，有效提高了測量速度，並減小了對河床的擾動影響。
  19. The high drought - resistance on the morphological, developmental, and physiological characteristics under water stress were showed in strong root lines of regenerative plants from hairy root cultures in maize

    結果表明，由於毛狀根再生植株強大的根系，即使在水分脅迫下形態學指標、發育指標、生理指標上仍能表現出很好的抗旱性。
  20. Effect of mosuchun on growth and drought resistance of the apple seedlings was studied under water stress using pot culture experiments simulating soil drought status

    摘要採用盆栽控水的方法研究了乾旱條件下葉面噴施摩素淳對蘋果幼苗生長和抗旱性的影響。
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