Medieval alchemists attempted to transmute base metals into gold.
中世纪
炼丹术士企图把贱
炼成。
摇滚乐薄片；非铁成形零件，铁水；高温加工切削基体；模版，贵重离子；碱板；铁板氧化物；氧化物电阻；绝缘膜；液体粉末；熔态；熔液板，片Medieval alchemists attempted to transmute base metals into gold.
中世纪炼丹术士企图把贱炼成。
The natives used to hammer the metal into arrowheads, using heavy stones.
土著人以前总是用沉重石头把这种
打成箭头。
Its properties also provide rust protection for steel surfaces and other oxidizable metals.
其性质也针对铁及其他易氧化表面提供防锈保护。
What spurred them on was alchemy,the “science” of changing ordinary metals into gold.
激励他们是炼术，即把普通变为子“科学”。
All renascent oxygen is consumed for oxidizing metal anode to form metal oxide film.
当形成足够厚氧化膜后， 阳极氧化速度减慢， 阳极表面才析出氧气。
It also serves and a rust protection coating on steel and other oxidizable metals.
也可用于钢铁和其他易氧化表面作为防锈涂料。
Gold and silver are tractable metals.
和银是容易加工。
Copper is a highly conductive metal.
铜是极易导（电、热）。
This workshop melts down the metal scrap.
这个车间熔化废。
The blacksmith is hammering the red-hot metal.
铁匠正在烧红铁。
Metal is a good conductor of electricity.
是很好导电体。
He hands a metal disc to me.
他把一个圆盘给我。
This metal net filters out the dirt.
这个网滤掉污物。
The acid has eaten through the metal.
酸把这块腐蚀穿了。
Certain metals are attracted to a magnet.
某些受磁石吸引。
Will unscrewed the cap from a metal flask.
威尔旋开瓶盖子。
A worker put metal bands around the safe.
一名工人用箍箍那保险箱。
Sugar, oil and metals are refined before use.
糖, 油和在使用前须先提炼。
Molten metal ran out on to the flagstones.
熔化溢流到外面石板上。
He hammered out the dents in the metal sheet.
他把板上一些凹痕敲掉了。
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