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...
她闭上眼睛,倚靠在芒果树的枝干上.She closes her eyes and back on the mangoes'bark.教学区与运动区由芒果树分隔.Teaching areas and motor areas separated by a mango tree.史密斯先生的院子里有一颗芒果树.There was a mango tree in Mr Smith's yard....
What is the origin of pelagic oozes?远洋软泥的来源是什么?When water reaches the saturated zone beneath the water table , it oozes slowly downward, and laterally.当水到达潜水面以下的饱和带时, 它就缓慢地向下和侧向渗透.The Elizabethan house oozes charm...这幢伊丽...
Peter took out his wallet and showed his ID to the man.彼得掏出钱包向那人出示他的身份证件。You must carry ID at all times.你必须随身携带身份证件。If you've forgotten your login ID, click this link.如果忘记了自己的注册账号就点击此链接。...