密度检验 density testing 年度检验 a ual survey; annual surey; annual survey; yearly inspection; yearly test ..
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... 附着力、铅笔硬度 Adhesion and Pencil Testing 密度 Density Testing 尺寸 Dimension Measurement ...
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Density testing of liquid fertilizer 液体肥料密度的测定
bulk accumulation density testing method 松散堆积密度法
density testing system 浓度测试仪
optical density testing 光密度检测
nuclear density-moisture gauge testing 核子仪测定法
testing density 测试密度
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Once a clinician determines that a patient has many risk factors, bone mineral density testing should be performed.
一旦医生确定病人有许多危险因素，骨密度测试应该进行。
This paper introduces the work principle of gas density testing system based on SCM AT89C51, and gives the hardware structure and software flow of testing system.
本文介绍了基于AT 89 C 51单片机气体浓度测试仪的工作原理，给出了测试仪的硬件结构及软件流程。
The principle, structure of the NBT-1 model of density adjusting unit were introduced. It can form a complete set with the density testing meter to control the density of the paper pulp.
介绍NBT 1型浓度调节器的结构、原理，该调节器与浓度变送器配套，可以控制纸浆的浓度。
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