建立了取样管与沉积物接触的二维轴对称有限元模型。
A two-dimensional axisymmetric finite element model of sampling tube and sediments is built.
当新鲜空气水平的样品送至非循环系统。取样管可能被凝滴或误吸的任何液体堵塞。
When sampling at the level of fresh gas delivery in non-rebreathing systems. The sampling line can become obstructed by condensation drops or aspiration of any fluids.
全套装备包括取样泵和2米的管。
微根管观测精度主要取决于微根管安装的质量和数量、微根管取样间隔期和取样数量、微根管图像分析技术等。
The factors affecting fine root measurement and its precision mainly included the quality and quantity of tube installation, sampling interval and quantity, and analysis technique of images, etc.
根据美国石油学会API标准规定，采用管体取样压平试样的屈服强度表征输油管体屈服强度。
API regulates that the yield strength of flatten specimen from pipe body is used to characterized the yield strength of oil pipeline body.
并通过计算机辅助分析，为取样门管参数的选取提供了理论依据。
It provided theoretical basis for the choice of gating diode by means of CAD analysis.
安瓿球取样较移液管取样分析结果准确；
The results of sampling by using ampoule ball are better than that of sampling by using pipette.
安瓿球取样较移液管取样分析结果准确；
The results of sampling by using ampoule ball are better than that of sampling by using pipette.
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