单词：iron-aluminium ratio
单词：iron-aluminium ratio 相关文章
87 natural resources words coal metal iron ore oil water precious metal diamond export import refine mine mining miner drill(ing) engineer supply infrastructure wood stone pure natural aluminium oil well phrases drill for oil explore for oil discover
情景英语口语100主题
图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t
数学英语
图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt
数学英语
BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up
英语新闻
Mining 采矿业 Geology or geography? 地质还是地理理论? Miners should spread their risks across countries as well as minerals 矿业公司应用多国开采和多矿产开发以分散风险 THE past half-dozen years have been kind to miners.
经济学人商业系列
Mining heavyweights Rio Tinto and BHP Billiton will combine their large Australian iron ore operations. It follows the collapse of a controversial deal that would have seen the Chinese take an 18 percent stake in Rio Tinto, which is beset with large
VOA标准英语2009年(六月)