The First Step (Degreasing) of the procedure is designed to remove dirt, dust, oil and grease. A water-soluble detergent is used to accomplish this, or a solvent.
第一步（去油）：去除污垢、灰尘、油和脂。使用水溶性去污剂或溶剂来完成该步骤。
Small grease dirt and powder use a mild detergent or solvent cleaning, then rinse and dry; or scrub with a damp cloth to completely remove all stains.
细小油脂污物及粉未使用中性清洁剂或溶剂清洗，再用清水洗净，干燥；或用湿布擦洗，以彻底清除所有污迹。
A strong solvent or blend of chemicals that will remove the cured film from the metal substrate.
一种非常强的溶剂或混合物，能够移除金属基材上的固化涂膜。
A potent solvent from the wax, use the quick and easy, can completely remove the old wax and other stubborn stains.
一种强力溶剂型起蜡水，使用简易快捷，能彻底清除旧蜡、顽渍等。
For C-(14) fatty acids and C-(16)C-(18) saturated fatty acids, the organic solvent abstract remove result is remarkable, but for C-(20)C-(22) saturated fatty acids, the result is faint.
有机溶剂分级提取对14碳短碳链的饱和与不饱和脂肪酸及16碳、18碳的饱和脂肪酸的脱除效果是明显的，但对脱除20碳、22碳的长碳链饱和脂肪酸的效果不明显。
Therefore, when using the vacuum pump protection devices need cleaning and drying to remove the low boiling point solvent into the pump, acid gases and solid particles.
因此真空油泵使用时需要净化干燥等保护装置，以除去进入泵中低沸点溶剂、酸碱性气体和固体微粒。
As the one of the preferred embodiment, the method USES hog still to remove water and aromatic hydrocarbon organic solvent azeotropy generated in the dehydration reaction.
作为优选的实施方式之一，使用蒸馏塔将在上述脱水反应中生成的水与芳香烃类有机溶剂共沸除去。
As the one of the preferred embodiment, the method USES hog still to remove water and aromatic hydrocarbon organic solvent azeotropy generated in the dehydration reaction.
作为优选的实施方式之一，使用蒸馏塔将在上述脱水反应中生成的水与芳香烃类有机溶剂共沸除去。
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