At last, the development tendency of dis synthetic environment is discussed.
最后对DIS综合环境的发展趋势进行了展望。
Required by environment protection and lead resource, hydrometallurgy of lead has become the development tendency in the field of lead smelting.
由于环保和资源的制约，湿法炼铅将成为铅冶炼的发展趋势。
It is considered that the gas generant with high energy, low sensitivity, large gas productivity, eco-friendly environment and low cost is the development tendency in the future.
认为研制高能量、低感度、大产气量、环保、廉价的可燃剂是气体发生剂的发展趋势。
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