中文：平直度測量儀；英文：flatness and straight-ness measuring instrument

解釋
中文：平直度測量儀承璃；英文：flatness and straight-ness measuring instrument的原理利耍；中文：平直度測量儀；英文：flatness and straight-ness measuring instrument的定義；中文：平直度測量儀隘梨；英文：flatness and straight-ness measuring instrument是什么程癌。
 測量零部件的平面度、直線度出嘹、同軸度以及用作導向的一類光學計量儀器席楚。
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