The metal band-sawing machine have the virtue of saving energy, high efficiency and saving material, which is the perfect metal material severing equipment for big, medium and small enterprise.
金属带锯床具有节能、高效、节材等优点，是大、中、小、型企业理想的金属材料切断设备。
The result show that the optimized ac contactor can reduce bouncing time of contact greatly, with energy saving and material saving...
结果表明，改造后的交流接触器节能、节材，大大减少了触头的弹跳时间。
The burnt brick produced with zeolite as the main raw material is a new energy-saving wall material. Its most notable features are light in weight, high in strength and good in energy saving.
以沸石为主要原料生产的烧结砖，是一种新型的节能墙体材料，它的最显著特点是：轻质、高强，节能效果好。
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