3.The application of electricity to heat is easy to control, and no environmental pollution.
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Its advantages include saving raw material, high quality of product and no environmental pollution.
本发明节约原料，质量符合标准，无三废污染。
The present invention has the advantages of low cost, stable performance, convenient use and no environmental pollution.
本发明具有成本低、性能稳定、使用方便、不污染环境的优点。
It consists of soluble inorganic salts and may be absorbed easily by plant, and it has no residue and no environmental pollution.
本发明的富硒剂组分少，全部都是有益无害的物质，植物吸收后不会有残留，故不会污染环境。
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