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【摘要】 While many results from the treatment-effect and related literatures are familia... sample sizes for estimating the mean concentration of organisms in ballast water. Given...
高强度气体放电灯的整流效应机理及保护方法研究ResearchonrectificationeffectofHIDlampanditsprotectionmethod哈尔滨工业大学电气工程系王卫王茂均徐殿国Emailwangwe...
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5页发布时间:2016年9月3日