直接取样 meaning in English

direct sampling

Direct sampling method
直接取样法
The content of the sap is negatively stained by uranyl acetate and observed by tem . results show consistency with the published observation that particles in gcv of open stomata are increased enormously in distribution density with obviously diminished small volume
研究内容分以下三个部分： a )用玻璃毛细管从开放态及aba诱导的关闭态保卫细胞液泡中直接取样，并将样品滴放在formvar包裹的铜网上，经醋酸铀负染后在透射电镜下观察。