单词：moulding sand cement
单词：moulding sand cement 相关文章
1849 、 静摩擦 staticfriction 1850 、 颈轴承 journalbearing 1851 、 颈缩 necking 1852 、 频带宽度 bandwidth 1853 、 频率 frequency 1854 、 头座 headstock 1855 、 阈值；临界值
英文名句短语
Lesson 47 Television Day: The sea TV Commentary: If you looked at the Pacific from a space-capsule you might think that the world was all water. You would hardly be able to see any land at all. Water covers most of the earth's surface. The sea contai
朗文3L看听学英语第四册
Grammar Girl here. Todays topic is cement versus concrete. Guest writer Sal Glynn writes: Accuracy is important. You might think concrete and cement are interchangeable, but you'll quickly find that you're mistaken when some guy at Home Depot rolls h
英语语法 Grammar Girl
By Ben Gilbert Baghdad 11 January 2006 An Iraqi mason works on a wall surrounding a new school on the outskirts of Basra (file picture) Iraq has been hit with a construction boom - in no small part du
2006年VOA标准英语（一月）
复合材料及汽车词汇 Acetyl 乙酰 Acid-proof paint 耐酸涂料, 耐酸油漆 Acrylic fiber 丙烯酸纤维 Acrylic resin 丙烯酸树脂 Active filler 活性填料 Adapter assembly 接头组件 Addition polyimide 加成型聚酰亚胺 Addition polymer 加聚物 Adjusting valve 调整阀，
英文语法词汇
Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele
VOA标准英语2010年(一月)