Transports the steel and iron material using the electro-magnet the installment named electromagnetism hoist crane.
利用电磁铁来搬运钢铁材料的装置叫做电磁起重机。
The material is the main source of iron for the steel industry, and it’s cheaper and more common than the rare-earth metals typically used to make electric car motors.
原材料的主要来源是钢铁工业中的铁,而且与通常用来制造电动汽车发动机的稀土金属相比,它不仅更便宜,而且也更普通。
The material is the main source of iron for the steel industry, and it's cheaper and more common than the rare-earth metals typically used to make electric car motors.
原材料的主要来源是钢铁工业中的铁,而且与通常用来制造电动汽车发动机的稀土金属相比,它不仅更便宜,而且也更普通。
Iron ore, the main raw material of steel, changed the lakes area and the nation.
VOA: special.2009.11.11
So you pick a better material like iron and steel, that makes a better bridge, we know that now because we have experience with bridges, but still your bridge might fail.
你选择了钢铁作为材料,来造了一座更好的桥,我们现在能够明晰这一点,是因为在造桥这件事上我们现在很有经验,但即使是我们现在造的桥也仍然会倒塌
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