Mass

[试题]The fact that the mass of a particle is equivalent to a certain of energy means that the particle can no longer be seen as a static object, but has to be conceived as a dynamic pattern, a process involving the energy which manifest itself as the parti

[名词解释] Mass Spectrometer（质谱仪）

[试题]In classical physics, the mass of an object had always been associated with an indestructible material substance, with some “stuff” of which all things were thought to be made.

[单选题]As the temperature of an air mass decreases，the（）.A . absolute humidity decreasesB . relative humidity increasesC . specific humidity decreasesD . dew point rise

[单选题]With supercharging a larger mass of air is supplied to the cylinder by blowing it in under pressure, which is the best means to （） of the engine.A . increase the exhaust temperatureB . increase the power ofC . reduce the speedD . increase the fuel co

[名词解释] Peptide mass fingerprint(肽指纹谱)

[名词解释] Tandem mass spectrometry(串联质谱)

[问答题] 中英文互译：mass flow

[填空题] 英译中（Translate）：mass flow（）

[名词解释] 最小临界质量 minimum critical mass

[单选题]极地大陆气团（Polar continental air mass）：（），空气层结稳定。A .干燥、低温、天气晴朗B .低温、潮湿、多阴天C .干燥、低温、气层不稳定D .干燥、低温、常阴天