The rotor has no contact with any parts in operation. There is no pollution. The operation is reliable, continuous, stable with strong suction, low noise.
叶轮运转不与任何零部件接触，没有污染，工作可靠，吸力强劲、连续工作、噪音低、工作平稳。
The method has the advantages of low cost, no damage to physicochemical property of the soil, no secondary pollution, and simultaneous production and treatment in the pollution soil.
本发明方法具有费用低，不破坏土壤的理化性质，无二次污染，且具有在污染土壤中边生产、边治理等优点。
It has low cost, no obvious degradation to product color and no pollution, and has excellent application foreground in the polypropylene applying fields.
该成核剂具有成本低，对制品色相无明显劣化，无污染的特点，在聚丙烯应用领域具有良好的应用前景。
Its advantages include no poison and pollution, no unpleasant odor, low eye irritation, higher safety for producers, transporters and users.
本剂型没有难闻有毒的气味，对眼睛刺激性小，减少了对环境的污染，大大提高了对生产、贮运和使用者的安全性。
Features are: simple structure, low cost, easy of installation, no noise, no carbon dioxide, no electromagnetic wave and environment pollution, not using nonrenewable resource.
本发明结构简单，生产使用成本低，易于安装、使用面广、无操音、无二氧化碳、无电磁波，不耗费不可再生资源，不污染环境。
The good solvent is high boiling point ester compound and has the advantages of no bad smell, no toxicity, no pollution, high recovery rate, low cost, etc.
本发明采用高沸点酯类化合物作为良溶剂，具有无难闻气味、无毒性、无污染、回收率 高、成本低廉等优点。
Photovoltaic power generation is safe and reliable, it has no noise, no pollution, less constraints, low failure rate, it is easy maintenance, etc. , so it has been widely used.
光伏发电具有安全可靠、无噪声、无污染、制约少、故障率低、维护简便等优点，而被广泛应用。
Photovoltaic power generation is safe and reliable, it has no noise, no pollution, less constraints, low failure rate, it is easy maintenance, etc. , so it has been widely used.
光伏发电具有安全可靠、无噪声、无污染、制约少、故障率低、维护简便等优点，而被广泛应用。
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