Direct determination 直接测定 ; 直接进样 ; 直接测定法 ; 直接测试
direct determination method 直接确定法
weights direct determination 权值直接确定
simultaneous direct determination 直接同时测定
direct determination of lead 微量铅的测定
direct determination of oxygen 氧的直接测定法
rapid and direct determination 快速直接测定
raw urine direct determination 直接测量
This paper focuses on direct determination of anions in environmental water samples by reversed-phase ion-pair chromatography and effects of Se on the growth of vegetable seedling under Cr stress.
本文主要研究了利用反相离子对色谱直接分离测定了环境水样品中含硫及含氮的阴离子和硒对铬胁迫下蔬菜幼苗生长的影响。
The method was applied to direct determination of nitrite in collapse lake water, fishpond water, power plant waste water and well water with satisfactory results.
应用该法直接测定煤矿塌陷湖水、鱼塘水、电厂废水和地下水中的亚硝酸根获得满意结果。
The intrinsic frequency of a beaker can be determined by means of direct determination, resonance or water drip modulation, and each of the methods makes use of the Lissajous figure.
烧杯的固有频率可以用直接测量法、共振法或水滴流调制法加以测定，各法中均利用利萨如图形。
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