The important reason of causing our country source of water supplying insufficient and national water environment pollution in some area is low water efficiency and large sewage emission.
造成我国部分地区水源供给不足和全国水环境普遍污染的重要原因是用水效率低和污水排放量大。
Repeatability and reproducibility of carbon in low-alloy steel analyzed by spark source atomic emission spectrometry are studied.
研究了火花源原子发射光谱仪分析低合金钢中碳的重复性和再现性。
A facility has been developed that can function as a low-energy electron point source (LEEPS) microscope or a field-emission microscope (FEM).
研制了一台集低能电子点源显微镜和场发射显微镜于一体的设备。
Field emission light source has drawn wide attention for its low power consumption, high brightness, long working-life and non-pollution.
场发射光源具有低功耗、高亮度、长寿命、无污染等优点，近年来成为人们研究的热点。
As that plan unfolds, shutting down a source of low-emission power, Germany's notable success in cutting greenhouse gases has stalled.
随着这一计划的实施，清洁电能的一个来源将被切断，德国在温室气体减排方面取得的令人瞩目的成绩已经停滞不前。
As that plan unfolds, shutting down a source of low-emission power, Germany's notable success in cutting greenhouse gases has stalled.
随着这一计划的实施，清洁电能的一个来源将被切断，德国在温室气体减排方面取得的令人瞩目的成绩已经停滞不前。
应用推荐