weight saving

For a long time, motor drive and control has to use electrical equipments and electrical vac-uum devices, has many disadvantages of large volume, heavy weight, high lost, low reliability on operation and more complex repairing, saving, transport.

长期以来，电动机驱动与控制所用电器和电真空器件，具有体积大、重量重、功耗大、运行可靠性差、维修储存运输较复杂等缺点。

Draft Survey based on "Archimedes" principle is a simplify procedures, saving time and labor and efficient method of weight, it calculates the weight of the cargo handling after obtaining the corresponding displacement hull through detecting drafts of the carrying vessels.

水尺计重是通过观测承运船舶的吃水，求得船体的相应排水量，计算所装卸货物的重量，是简化手续、省时省力和效率较高的一种计重方法。

The electronic ballast has many advantages, such as small size, weight and energy-saving.

电子镇流器以其体积小, 质量轻,节能等优点, 在照明工程中得到越来越多的应用.

Energy saving and weight reducing are the major trends in auto radiator development, thus aluminum radiators will have a very good marketing prospect.

未来汽车水箱必然要朝着节能和轻量化方向发展，因而铝制水箱有着相当良好的市场前景。

Appling the hollow shear wall to multi-story and sub-high rise residences, these can be come into being that include reducing self-weight, stiffness, earthquake action, and improving ductile, saving material and energy, so building's integration economy target can be fallen.

将这种墙用于地震区的多层和小高层房屋，可以减轻自重，减小刚度，降低地震作用，提高延性，节约材料，并且节能效果好，降低了房屋的综合经济指标。