Locomotive maintenance produces sludge, waste solvents, and cleaners that can cause air pollution and, if ignited, serious threats to human health.
机车维修产生的污泥、废溶剂和清洁剂也可造成空气污染，如果点燃，会严重威胁人体健康。
With the palladium catalyst, the compounds can often be produced at lower temperatures with fewer solvents, reducing cost and waste.
在钯的催化下，化合物可以在低温和少量溶剂的条件下大量制造，减少了成本和废液。
The reaction rate, concentration, solvents, ratio, Catalyst are dealt with respectively and the reuse of waste liquors is also cared about.
研究了浓度、配比、溶剂、催化剂与反应速度之关系以及废母液的再利用。
Special solvents can be used to decarbonize and desulfurize waste catalysts to replace the high-temperature roasting pretreatment process.
可以采用特殊的溶剂对废催化剂进行脱碳和脱硫预处理，以代替高温焙烧预处理。
Automatic replacement of solvents and waste discharge to avoid escape of toxic reagents, ensuring the operator and environmental safety.
自动更换溶剂和排出废液，避免有毒试剂外逸，保证操作人员及环境安全。
Choice of solvents and solvents ratio on the adhesive from waste polystyrene foam plastic were studied.
研究了利用废聚苯乙烯制备胶粘剂中溶剂的选择及溶剂比例的确定。
In this paper, chemical recycling processes of waste plastics using supercritical water as reaction solvents were described.
论述了近年来废塑料在超临界水作用下的化学回收过程。
Organic solvents, such as petroleum ether and gasoline, are used as extracting agents to measure oil content in oilfield waste water and the normal curves of reference oil are plotted.
油田污水中含油量的测定采用石油醚、汽油等有机溶剂作萃取剂，绘制标准油的标准曲线。
Organic solvents, such as petroleum ether and gasoline, are used as extracting agents to measure oil content in oilfield waste water and the normal curves of reference oil are plotted.
油田污水中含油量的测定采用石油醚、汽油等有机溶剂作萃取剂，绘制标准油的标准曲线。
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