The last enters into the composition of some of the solid lubricating greases, and is also used as an adulterant of other oils. [Please select]
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The act of lubricating the mass must have taken place during the process of swallowing; certainly nothing was applied beforehand. [Please select]
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** Lubricating a Camera Shutter [58] An experienced photographer uses blacklead [graphite] for grooves about a camera or holder. [Please select]
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Mineral Oils~ have of late years taken immense strides in the popular and merited estimation of consumers, for general lubricating purposes. [Please select]
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The amount of frictional resistance to the motion of machinery is obviously determined by the character of the lubricating material. [Please select]
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_Copper_ is not attacked by mineral lubricating oil, least by sperm oil. [Please select]
But lack of lubricating oils and the prodigious wear and tear of the war, not compensated by normal repairs, had already reduced the German railway system to a low state of efficiency. [Please select]
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A Handbook for Oil Manufacturers and Refiners, Candle, Soap and Lubricating Oil Makers, and the Oil and Fat Industry in General. [Please select]
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