在触针式轮廓测量仪中，性能优良的测量机构是保证触针与被测表面之间“接触测量”的关键部件。
In the stylus profilometer, a measuring mechanism with good performance is the key component, which guarantees "contact measuring" between the stylus and the surface of specimen.
便携式研磨工具应装有安全防护装置，这样不仅可防止工人接触运转的砂轮表面，而且他们也不会被破裂时飞溅的碎片击中。
Portable grinding tools need to be equipped with safety guards to protect workers not only from the moving wheel surface, but also from flying fragments in case of breakage.
一种接触式粘着剂，用于大部分表面的暂时或永久性粘贴。
A contact adhesive for permanent or temporary bonding of most surfaces.
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