He rove hither and thither that night.那一夜他四处漫游.He has sent hither swarms of officers to harass our people.他委派大批的官员到这里骚扰我们的人民。He tramped hither and thither.他到处流浪.He wandered hither and thither looking for a playmate.他逛来逛去...
On the basis of coalescing this kind of element can separate oil from compressed air.采用凝聚原理,分离压缩空气中的油份.The monomer droplets are prevented from coalescing by agitation and the presence of suspension stabilizer.可通过搅拌和加入悬浮稳...