当压力改变时,阀帽容易上下移动.Bonnet tendency to move up or down as pressure changes.阀帽: 不需要将阀门从管路中拆除,就可以进入维护铰链和阀瓣.Cap: permits access to hinge and disc without removing valve from line.止回阀标签通常安置在阀帽的边缘上.Check valve tags are typically ...
仅仅50毫克的咖啡因就能产生药理效果。As little as 50mg of caffeine can produce pharmacological effects.凭经验估计，一杯过滤咖啡约含80毫克咖啡因。As a rule of thumb, a cup of filter coffee contains about 80mg of caffeine.每次服用大约60毫克，每天最多4次，或遵医嘱。Take approximat...
Well, you know William, always leching after some woman or other.唉, 你是知道威廉这个色鬼的, 他总是拈花惹草.Well, you know Peter, always leching after some woman or other.唉, 你是知道彼得这个人的, 他总是爱拈花惹草....
委员会最近因为介入该起争端而遭到批评。The council recently drew fire for its intervention in the dispute.如果无法达成协议，军队将会介入。If no agreement was reached, the army would step in.安全部队不得不介入，以防止局势进一步恶化。The security forces had to intervene to preve...
There is hysteresis between the sorption and desorption curves.吸湿与脱湿曲线间有一定的滞后现象.One may also adjust the conditions to monitor the desorption of adsorbate from the catalyst.也可以调节条件以检测催化剂上吸附质的解吸.These composite resins have...