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1.The final control circuit adopts power MOSFET as current control device, which uses the principle of negative feedback to adjust and stabilize output current.
末级电路采用功率MOSFET作电流控制元件,运用负反馈原理稳定输出电流。收藏指正
2.Cleaner production is the final selection for the development of papermaking industry in china. The paper mills with output from 5000 to 17000tons/a are the major polluting sources to be controlled in the Chinese paper industry. Modification of chemical pulping methods to high - gaining rate pulping method is an effective method to reduce pollution.
清洁生产是发展我国造纸工业的根本出路,年产5000-17000吨的造纸厂是我国造纸工业污染治理的主要对象,改化学制浆为高得率制浆是减少污染的一条良策。收藏指正
3.In data processing of expanding spread, output frequency is normally affected by earth filtering and NMO stretching and decreases as offset increases,which makes high resolution of final data impossible.
在进行长排列地震资料处理时,由于大地滤波和动校拉伸等因素的影响,存在随炮检距增大频率降低的现象,难以获得高分辨率的资料处理结果。收藏指正
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