All crown restoration cementation before sandblasting, hot steam spray cleaning clean, blow dry.
所有冠修复体粘固前进行喷砂，热蒸汽喷洗清洁，吹干。
Spray-like water-cooling and dilution steam, to protect the field.
喷雾状水冷却和稀释蒸气、保护现场人员。
The application of bi - screw pump (instead of former steam reciprocating pump) in the spray wax deoiling unit shows that such pump runs reliably and good economic benefit is also gained.
喷雾蜡脱油装置采用双螺杆泵(代替原来蒸汽往复泵)输送喷雾蜡膏油的情况表明，双螺杆泵运行可靠，不易抽空，经济效益良好。
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