释义 |
point source pɔintsɔ:s 短语¹⁸⁰⁰⁹⁸⁺¹ 基本英英例句 点声源
Noun: a concentrated source especially of radiation or pollution that is spatially constricted By theoretical analysis, two equations for the distance of vertical homogeneous mixing and the part depth of homogeneous mixing for the instantaneous point source are presented. 推导得出瞬时点源垂向均匀混合的纵向距离及垂向部分混合水深的理论表达式。 cnki In the case of point source continuous discharge for5 hours, the particles are discharged respectively at the instance of high tide and low tide. 点源连续排放5个小时的情况下,分别在高潮时刻和低潮时刻开始投放粒子; cnki The field of a harmonic point source in layered media has certain angular distribution. 分层介质中简谐点源的声场具有确定的角度分布。 cnki The mixing law of the continuous point source, in the nature flow, is studied. 研究了连续点源污染物在近区的垂向扩散规律。 cnki How to regulate“ non- point source” pollution, such as pesticides from agricultural run-off, is a continuing, and harder, debate. 象农业使用中飘散的杀虫剂这类“非点源”污染又如何控制? 这更是个长久和难缠的辩论题。 ecocn In addition, the point source function of non Newtonian exponential flow in single fractal reservoir and the uniform flux solution of the finite conductivity vertical fracture well are obtained. 另外,得到了单重分形油藏中非牛顿幂律流的点源函数和有限导流垂直裂缝井的等流量解。 cnki Soil erosion and non point source pollution are two serious environmental issues. 土壤侵蚀与非点源污染是两大重要的环境问题。 cnki The estimation method is nei-her similar to that of non- imaging point source IR seeker nor to that of general thermal imagery. 这种估算方法既不同于非成象点源系统,也不同于一般热象仪。 iciba The method is based on the surface charge method, in which the space charge effects have been considered. A simplification against the structure of point source has been made. 该方法以表面电荷法为基础,包括了空间电荷效应的计算,并对点源结构特点进行了简化处理。 cnki The specific discharge is infinite at the vicinity of every point source or sink. 在每个点源或点汇附近比流量为无穷大。 jukuu The study on urban surface dust should become a new focus of urban environment research in China, which is of significance in urban ecology and in the management of non- point source pollution. 地表灰尘污染的研究应该成为我国城市生态环境研究的一个新的切入点,对城市生态和非点源污染管理有着重要的现实意义。 cnki |