一个百万分之一米。用于表述涂层的厚度。
One millionth of a meter. Used to express applied film thickness.
触发系统也能以百万分之一米的精度记录粒子的位置。
The trigger system also registers the location of particles to millionths of a metre.
天然淀粉粒子的体积大约是30微米，也就是几百万分之一米。
Natural starch particles are roughly 30 microns or millionths of a meter wide.
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