让他给家具除尘并把它们擦亮。Let him dust and shine the furniture.真空吸尘器靠抽吸除尘。Vacuum cleaners work by suction.经实际测试表明, 机组的除尘效率达99.Finally , through the actual test, unit's collection efficiency reaches above 99....
Clouds were scudding across the sky.云飞越天空.China Advertising Photo Market - Like a Rising Wind and Scudding Clouds.中国广告图片市场:风起云涌.The yacht was scudding along before the wind.那只帆船正乘风笔直疾驶....
约翰斯通的研究涉猎很广，让人钦佩。Johnstone's research is admirably wide-ranging.在整个职业生涯中, 除了爵士乐他也不断涉猎其他领域.Throughout his career, he's veered away from jazz into other areas.她从小就酷爱阅读——书籍 、 杂志, 无不涉猎.She read avidly from an early...
The classification, machanism and mordant dyeing methods of natural plant dyeing are described.描述了天然染料植物的分类 、 染色机理和媒染方法.The paper presented the machanism of pulse oxygen inhalation andthe electrical principle of pulse ox...