- tra mi ion rate
- transmissionrate
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传递速率的英文
例句与用法
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- Frost accumulation has a severe negative effect on refrigeration , cryogenic and many other engineering systems due to the increased flow and heat transfer resistance and the reduced energy transfer rate
由于霜层会增加传热热阻、降低能量的传递速率,因此结霜现象对于制冷、低温和航天技术的影响十分严重。 - The two main objectives of theses products are firstly to prevent circuits flattening ( thus reduction of thermal transfer ( 7 , 8 ) or resistance to liquid flow ( 9 , 10 ) ) and secondly to prevent microbial corrosion
如果要在系统中使用这种化学品，首先要能防止循环系统的破坏，从而导致热传递速率降低（ 7 ， 8 ）或者流速变慢（ 9 ， 10 ） ，其次要能够防止生物腐蚀。 - After the stolon had suffered from severing disturbance , clonal ramets could keep photosynthetic organ from being damaged through the plastic responses of the chlorophyll fluorescence traits , such as increasing nonphotochemical quenching of chlorophyll fluorescence ( npq ) , decreasing actual photochemical efficiency of ps ii in the light ( f / fm " ) and photochemical electron transport rate ( etr ) . moreover , the clonal ramets could also increase water use efficiency by means of decreasing stomatal conductance
在匍匐茎受到切断干扰后，臭柏能通过提高非光化学猝灭( npq ) 、降低ps实际光化学量子产量( f fm ’ )和表观光合电子传递速率( etr )等叶绿素荧光特性的可塑性反应来保护小枝光合机构不被破坏，并且可以降低气孔导度以提高水分利用效率。 - The flow characteristics , distributions of current density and chemical components , and the performance of these two different designs are calculated and compared . the flow and mass transport characteristics are analyzed in detail , which indicate that strong forced convection is produced in the interdigitated flow field , which consist of dead - end gas channel that force the gases through the porous electrodes . results of comparison show that forced convection induced by the interdigitated flow field in the diffusion layer effectively enhances mass transport of reactants and products , thus leading to a higher cell performance and the limiting current density
在传统流道设计的pemfc中，反应物从流道到催化层的供应和生成物从催化层到流道的排出主要是以扩散为主，而在交叉梳状流道设计中，以流动带动的对流传递则占据了主导地位，而且这种以对流为主的传递机理大大提高了反应物和产物传递速率，从而有效地改善了电池的极限电流密度和极化性能等特性。 - The electron transport rates of chloroplasts were depressed after chinese cabbage and mustard had been infected with tumv , whose extents reached 6 . 4 % and 64 . 6 % respectively . the decline of photosystem ii ( psii ) activities mainly contributed to the drop of electron transport rate , whose degrees reached 56 . 9 % and 34 . 3 % , with the statistical result p < 0 . 01
青菜和芥菜叶绿体电子传递全链的电子传递速率各降低6 . 4和64 . 6 ；光系统( ps )的电子传递活性各下降56 . 9和34 . 3 ，与健康对照的差异水平均达到极显著；光系统( ps )的电子传递受抑程度较轻，分别为25 . 8和24 . 7 。