Special care must be taken to ensure that no contamination of the sample occurs from sampling devices and storage containers. 特別注意的是從取樣裝置到保存容器必須確保樣品不受污染。
Thus, it will improve the environmental research to study the sampling technology of gravity corer. 因此研究重力取樣器的取樣技術(shù)對環(huán)境研究具有積極的意義。
In chapter 7, the structure and the working principle of the gas hydrate temperature-hold and pressure-tight sampling corer are discussed. 第七章分析了天然氣水合物保溫保壓取樣器的結構和工作原理。
A device made of plexiglass is added between the gas absorption tube and gas flowmeter in the atmospheric sampler. 在大氣采樣器上加裝防止倒吸裝置，可防止吸收液倒吸進(jìn)入流量計。
For measuring the grease level in a holding tank, the grease trap sampler is designed for sampling liquid grease and oils.It will not work with solid or semi-hardened materials. 用于測量油酯標準，油酯分離采樣器專(zhuān)門(mén)為采集潤滑油酯和油脂樣品設計，不適用于固體或者半固體采樣。
