催化剂是一种能加速化学反应的物质.A catalyst is a substance which speeds up a chemical reaction.各种陶土管用作转化催化剂的载体.Various ceramic materials have been suggested as supports for reforming catalyst.经过泡水试验,催化剂应不开裂或破碎.To pass the water test the...
A reply came by phone: Would we mind faxing the information?电话里传来了回音: 我们是否介意传真相关情况?With a scanner, you can email documents as PDFs instead of faxing.而有扫描仪的话, 你又可以不用发传真,而是将文件扫描成PDF档 电邮给客户.Almost forgot about the photocopy...
We dowse oil and ore in South America for big companies.我们在南美洲为一些大公司探测石油和矿石。How many tons of ore can this machine crush in an hour?这机器每小时可以破碎多少吨矿石?The net profit amounts to 20 dollars per ton of ore.每吨矿砂的净利达20美元....
Rowe does a very clever riff on the nature of prejudice.罗就偏见的本质讲了一番很精辟的话。I've spent a lifetime fighting against racism and prejudice.我一辈子都在同种族主义和偏见作斗争。I'm calling in reference to your series on prejudice.我打电话是要...