• 垫圈表面标准光洁度大为125- 200百万分之一英寸粗糙度

    Standard finish of gasket surface is 125-200 micro-inch maximum roughness.

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  • 学会在千分尺辨识一百万分之一英寸镶嵌着金刚石工具制作砂轮

    He had learned to read the millionths of an inch on the micrometer and to shape the grinding wheel with an instrument set with a diamond.

    youdao

  • 病毒很难发现其中一个原因是因为他们微小——通常只有百万分之一英寸大小。

    One reason that viruses can be so hard to find is that they're so small - typically a few millionths of an inch across.

    youdao

  • 英寸百万分之一极小长度

    A a millionth of an inch is an infinitesimal length.

    youdao

  • 英寸百万分之一极小长度

    A a millionth of an inch is an infinitesimal length.

    youdao

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