oily dirt造句

• It is used dry, and should work, especially against soot and other oily dirt.
• Tolerances are close, and the buildup of oily dirt with normal use necessitates periodic cleaning and adjustment.
• Fatty acids in the soap emulsify the oils in dirt, enabling the removal of oily dirt with water.
• But since it is an oily dirt, you could try cleaning with KRC-7, sold in plumbing supply stores.
• A faulty air system deposited a film of oily dirt, and a leak in climate control equipment left a large water stain.
• The difference will be this : if Anna Connor doesn't pay to remove the oily dirt from South Pearl Street, taxpayers will pay for it.
• According to The McGraw-Hill Encyclopedia of Chemistry, fabric softening agents are surfactants, chemicals that reduce the tension at the surface where two different materials meet . ( Soap and detergents are surfactants that reduce oil-water surface tensions and thus help wash out oily dirt .)