The sample, after being purged by reversed extraction and purified byPVP - kieselguhr column, was enriched through Amberlite XAD - 7 column.样品经过乙酸乙酯反萃取及PVP - 硅藻土层析柱后, 再径XAD - 7柱浓缩....
He must be a very strange - looking camel driver for people to gape like that.他必定是个很奇怪的拉骆驼的,他想;要不然,大家为什么这样呆呆的看着他呢?His secretary stopped taking notes to gape at me...他的秘书停止了记录，目瞪口呆地望着我。He that gapes till he be fed will ga...
I have laid the biddy off for her underhanded performance.我辞退了女佣,因为她手脚不老实.Evidently Biddy had taught Joe to write.一望而知,毕蒂已经教会了乔写字.Biddy's ever right and ready.毕蒂总是那么结实,那么利落.The Freak was a three-legged biddy chicken...