因此可以采用碱剂和羟甲基磺酸盐类、亚硫酸钠等作防拔染剂。
The usual resist-discharge agents are alkali agents, carboxymethyl sulfonates and sodium sulfites etc.
目前，发达国家已经采用了甲基磺酸盐系列产品来改变这一状况。
At present, the methyl sulphonate series products have been used by some developed countries for changing this state.
目前，发达国家已经采用了甲基磺酸盐系列产品来改变这一状况。
At present, the methyl sulphonate series products have been used by some developed countries for changing this state.
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