point source造句
31) The industry, residential point source river and mine non - point source are of great water pollution load.
32) The one dimensional Fresnel zone phase correcting principle can be applied to a cylindrical reflector to construct a new type of point source feeding reflector.
33) For any n-layer vertical dike set with contrasts of electric resistivity, a set of equations of coefficients are derived for calculating the electricpotential in the point source field.
34) In the two-dimensional interpretation, we adopt the point source finite-element method and the reciprocity principle which can lighten the calculation burden.
35) To do so, a straight line is defined between a point source of light and a detector.
36) The illumination condition using the free reflector was ray tracing simulated with point source source, respectively.
37) A facility has been developed a low - energy electron point source ( LEEPS ) microscope or a - emission microscope ( FEM ) .
38) The scintillation is more pronounced because the star is effectively a point source of light seen as a narrow bundle of light rays.
39) Mathematic model is the most effectual technique that quantitatively studies non - point source pollutions.
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