采用便携式瞬时腐蚀速度测量仪，对20钢及其热浸镀铝件分别在酸性和碱性介质中测定年腐蚀速率并进行比较。
A portable corrosion rate meter was used to comparatively measure the annual corrosion rates of 20 steel tube and its integral hot-dip aluminizing coating in acidic and alkali corrosive mediums.
PDHM - 500型PDHM - 1000型便携式数显高度仪是精密的测量仪器，可以对工件尺寸进行绝对和相对比较测量。
Model PDHM-500 and Model PDHM-1000 digital height gages are high accuracy measuring instruments, which can be used to measure dimensions of workpieces absolutely and by comparison.
并配有万能工具显微镜与三管气动测量仪、瑞士进口红宝石比较仪、洛式硬度计等先进检测设备。
And with a microscope and Universal three pneumatic measuring instrument, Switzerland imports Ruby comparator, Luo-hardness, and other advanced detection equipment.
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