[机] 直管, 注入管(泵的)压入管(泵的)

ascending pipe的用法和样例：

例句

The ratcheting strains were measured by strain gauges, and the radial deformation of the pipe was measured by self-designed radial displacement extensometers.棘轮应变由应变计检测，直管径向变形由自行设计的径向位移引伸计检测。

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