在离子减薄制备的电镜样品中，孔的边缘往往有一些无颗粒区。

Some small grain free regions (GFR) near the hole in the transmission electron microscopic specimen of this material prepared by ion milling was observed.

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本品直接加水搅拌均匀，无颗粒，成涂料状，搅拌时间大于5分钟。

This product is evenly mixed with water directly, no particles, into a paint-like, mixing time is greater than 5 minutes.

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去年秋天，小李种了两亩蚕豆，但由于干旱颗粒无收。

Li planted two mu of broad beans last autumn, but he has seen no yield because of the drought.

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