板面粗糙度不能超过40微寸(1.0微米)，以达到最低镀层重量。

Strip roughness must not exceed 40 microinch (1.0 micron) in order to achieve these minimum coat weights.

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在这只昆虫离我只有一英寸左右时，我使用了微距镜头。

I have used a macro lens as the insect was only an inch or so long.

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在哈佛大学微性机器人实验室，实验室的创建人、主管罗伯特·伍德正在开发一种飞行机器人，目前这种机器人的重量刚刚超过2盎司，翼展才1英寸多一些。

At Harvard University's Microrobotics Laboratory, founder and director Robert Wood is developing a robotic fly that currently weighs just over 2oz and has a wingspan of just over 1in.

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