The limited height of the loaded railway freight cars' gravity center is an important standard in the loading and fastening rules of railway freight.
重车重心限制高度是铁路货运装载加固规则中的一项重要标准。
The limited height of the loaded railway freight cars' gravity center is an important standard in the loading and fastening rules of railway freight.
重车重心限制高度是铁路货运装载加固规则中的一项重要标准。
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