尺寸范围从几纳米到几百微米的珠粒在市场上都有存在。
Bead size in a range from several nanometers to hundreds of micrometers are commercially available.
它可以制成板材、珠粒和固体形式，可以发泡、注塑和挤塑。
It can be manufactured in sheet, bead, and solid forms and can be foamed, injection-molded and extruded.
干燥剂的外形为球状珠粒，因为球形的表面积最大，有利于水蒸气的吸附。
The appearance of desiccant is ball bead, because the surface area of the spherical, to the largest water vapor adsorption.
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