unpoisonous

常見(jiàn)例句

• A zinc series phosphating solution was developed by using unpoisonous and free from pollution acceleration HAS for NaNO2.
  研究了磷化液中各組分及工藝條件對(duì)磷化膜性能的影響,并分析了鋅系磷化的原理。
• Study and Use of High Purity,High Strength,Unpoisonous,Rapid Hardening Basic Repair Mix
  高純高強(qiáng)無(wú)毒快硬堿性修補(bǔ)料的研究與應(yīng)用
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