例句 /

Abstract: A buoyancy method of measure diamond fi lms density was reported.Feature of the method is quick,convenient accuracy and practical.

Abstract: A buoyancy method of measure diamond fi lms density was reported.Feature of the method is quick,convenient accuracy and practical.

文摘:本文报道了一种测量金刚石膜密度的浮力法。这种方法的特点是快速、方便、准确和实用。