单词:manganese alloy steel cast crossing
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图片1 enemy n. 敌人,敌军 adj. 敌人的,敌方的 例句:After several fails the enemy was forced to retreat. 几经失败之后,敌军被迫后撤。 rival n. 竞争者 对手 v. 竞争,对抗 ,相匹敌 例句:After the national
It's the best place in Wenatchee, I said to my husband, as I described the new Pybus Market. This all-year-round(1) shopping center and farmer's market is the latest addition(2) to Wenatchee. It is a real step forward for this town which, up until no
379 、 石棉 asbestos;asbestus 380 、 石膏 PlasterofParis 381 、 示波器 oscilloscope 382 、 立体图 pictorialdrawing 383 、 交流电流 alternatingcurrent(a.c.) 384 、 交流电压 a.c.
This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. It might look and even feel like paper, but a new material created by scientists at MIT is designed to be an oil spill super-absorber. This technology d
iron and steel industry 钢铁工业 ironworks 铁厂 foundry 铸造车间 steelworks, steel mill 钢厂 coking plant 炼焦厂 electrometallurgy 电冶金学 powder metallurgy 粉末冶金学 blast f
Rumi: Im as sick as a dog! Hugo: It serves you right. I warned you not to eat food sold by food vendors on the street. Cleanliness is not a priority at some of those food stands. Rumi: Im not one to turn up my nose up at street food. On the street is