英语释义

• a spatially constricted by concentrated source (especially of radiation or pollution)

片语

point sound source[声]

point light source[光] 点光源

Point-source irrigation点源根灌

point heat source点热源

point-source distribution点源分布

point-source map点源图

point-source model[天]

point fire source model点火源模型

英汉例句

• using the real point source coaxial technology.

  采用真正的点声源同轴技术。

• agnps (agricultural non point source) model is a computer model specialized for predicting and evaluating the agricultural non point source pollution of a watershed.

  agnps模型是美国研制的、专用于模拟小流域土壤侵蚀、养分流失和预测评价农业非点源污染状况的计算机模型。

• swat model was used to evaluate agricultural non - point source pollution of daning river watershed.

  以大宁河流域为研究区域，应用swat模型进行了流域农业非点源污染负荷的模拟计算。

• the short arc xenon lamp is a sort of point source having very high luminous intensity and a continuous spectrum from ultraviolet to ir.

  短弧氙灯是一种发光强度高，具有从紫外到红外的连续光谱的点光源。

• the bpt regulations there covered the red meat processing segment of the meat products point source category.

  「最佳实用技术」规章适用于肉制品的牛羊肉加工。这是一种特种污染源。

• the acoustic wave field excited by a pulsed point source in a fluid-felled borehole surrounded by horizontal multiple-layered media is solved by the send-analytical method.

  针对声波测井薄层探测的需要，用半解析方法求解了地层为水平多层介质时柱状井孔内脉沖点源激发的声场。

• but if the goal is to reproduce sounds accurately, then a speaker must be either an acoustic point source (monopole, omni-directional) or an acoustically small bi-directional source (dipole).

  但是，如果目标是精确的重放声音的话，一个扬声器必须是声学上的点声源（单极点，全向响应），或者是一个声学上小的双向源（偶极）。

• and so, when you think about how much cement concrete are consumed annually on the planet, this becomes a considerable point source of greenhouse gas emissions.

  当你想到,在地球上每年要消耗多少的水泥混凝土的时候,这将是温室气体排放的,一个主要来源。