Main engine lubricating oil pump 主机滑油泵
main lubricating oil pump 主润滑油泵
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Lubricating oil of the low pressure system supplies the main and other bearings.
低压系统的滑油供给主轴承和其它轴承。
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The toxicity of lubricating oil and grease 'chiefly stem from additives and stuff. Its main harm is dermatitis.
润滑油、脂的毒性主要来源于添加剂和填充物，其主要危害是皮炎。
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