结果表明钢中存在有由于冶炼工艺不当而产生的大块外来非金属夹杂物。
It was found that the large exogenous inclusions in the steel plate, which were produced by improper metallurgical operation, caused cracking during cold forming of the wheel rims.
结果表明钢中存在有由于冶炼工艺不当而产生的大块外来非金属夹杂物。
It was found that the large exogenous inclusions in the steel plate, which were produced by improper metallurgical operation, caused cracking during cold forming of the wheel rims.
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