| 释义 |
coal-dust 英'kəʊld'ʌst美'kəʊld'ʌst COCA²⁴⁹⁵¹⁶BNC¹⁴⁴⁶⁶⁴⁺³
基本例句
煤尘¹⁰⁰
Electret air filter material has superior filter performance, so it is considered as ideal filter material for coal-dust stained yarn.
驻极体空气过滤材料具有优良的过滤性能，是治理“煤灰纱”的理想过滤材料。 chemyq
Main problems in harnessing coal-dust stained yarn were pointed out, and diameter of particle in forming coal-dust stained yarn was analyzed.
前言：指出了目前治理“煤灰纱”存在的主要问题，分析了形成“煤灰纱”的颗粒物粒度。 chemyq |