At the entrance of the oven, the exhaust air equipment discharges volatilized solvent in order to avoid exhaust gas participating in the second circulation and ensure safety.
烘箱入口处安装前置排风，可将初期挥发的溶剂排出，废气不参加二次循环，确保安全。
When selecting solvent attention should be paid to its solubility, steam pressure and volatility in addition to safety.
选择溶剂要注意溶解力、蒸汽压与挥发度，使用中要注意安全。
This printing ink cleaner selected a new solvent. It was proved that the cleaner has high efficiency, safety and light smell.
新型印刷油墨清洗剂选用了一种新型溶剂，其清洗效果好，使用安全，气味轻。
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