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单词
lead-base grease
释义
lead-base grease
lead-base grease
[
′led ‚bās ′grēs
]
(materials)
A mixture of soap and mineral oil, usually prepared by the reaction of lead oxide and fatty acid; holds up to extreme pressure and is useful as a gear lubricant.
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更新时间:2025/11/1 5:01:18