有些食物的吸收比另一些更容易.The assimilation of some foods is more easily than that of others.目的: 测定小麦中的微量砷,并研究其自然迁移规律和生物吸收比的特性.Objective: Detect the content of arsenic in soil and wheat with study on bio - absorptance of arsenic.据称,...
我刚发动引擎时，引擎冒出火星，发出长长的嘶声，然后就熄火了。When I started the engine it sparked, fizzed and went dead.飞机快到机场时，本来有故障的左引擎突然熄火，引发了灾难。The faulty left-hand engine failed catastrophically as the aircraft approached the airport.你的脚离开踏板，汽车便会...