YAG laser has been used to machine rectangular-shaped holes of about several microns in width.
用YAG激光器加工出了几微米宽的长方孔。
The wires were highly uniform in size, several microns long, but only about 50 nanometers in diameter.
这些纳米线的大小高度统一，它们的长度均为数微米，而直径仅为50纳米左右。
Otavite grains are very tiny in size, being commonly only several microns, and the large ones are several tens of microns.
菱镉矿的晶粒微小，一般只有几个微米，大者几十微米，常与菱锌矿、 硫镉矿共生或伴生在一起，呈疏松集合体、皮壳或薄膜状产出。
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