sink-efficiency的意思|示意

Dr Macphail felt his heart sink when he considered the efficiency with which she certainly managed it.

麦克费尔医生一想到她主持这一切肯定极有效率，心里就不禁发凉。

Selection of high thermal conductivity of the heat sink material is very helpful to improve the efficiency of heat conduction.

散热片选用较高导热系数的材料对提高热传导效率很有帮助。

This paper attempts to explain floatability classification parameters of coals through the theoretical data of float and sink in comparison with flotation efficiency.

本文尝试利用煤在重液中分离所得的理论指标与煤的浮选效率的比较关系来探讨煤的浮选性分类指标。