Dry preparation has many advantages such as low cost, excellent product property, no pollution to environment, etc.
干法制备具有生产成本低，产品性能优良，对环境无污染等优点。
The heat stabilizer has convenient sources, low price, good biocompatibility, innocuity and no pollution to environment.
该热稳定剂来源方便，价格低廉，而且具有良好的生物相容性，无毒，不会对环境造成污染。
The said film has advantages of high strength, water resistance, simple preparation technique, low price, no pollution to environment and so on.
此种薄膜材料具有强度高，耐水、加工工艺简单、价格低廉、不污染环境等优点。
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