Dopants for silicon wafers are found in Groups III and V of the Periodic Table of the Elements.

晶圆片搀杂剂可以在元素周期表的III和V族元素中发现。

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The V belt wheels of noise experimental table of main carriage reduction gear must suit drive ratio, be lightest in weight and least in moment of inertia .

为降低轿车主减速器噪声测试试验台本底噪声，其传动系统采用了四对三角胶带传动。

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MARKING: The marking of classical wrapped V-belts represent both the inside length and pitch length of factory V-belts. The length conversion table is availabie for conversion between various models.

标识：普通包布V带的标识，本公司均按V带的外周长度及基准长度标识，各型号换算关系见上表。

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This primarily white ceramic toast cooker boasts a simplified design, a single-feed toaster, and a V-shaped rack to hold the toast for use on the kitchen table.

ENGADGET: Glide toaster gives breakfast bread a new flair