lubricator
潤滑物[人] ;加油者
Lu·bri·ca·tor n.
1. One who, or that which, lubricates. “ Lubricator of the fibers.”
2. A contrivance, as an oil cup, for supplying a lubricant to machinery.
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lubricator
n : a substance capable of reducing friction by making surfaces
smooth or slippery [syn: lubricant, lubricating
substance]