particle n. 1.颗粒,微粒;微量,极少量。 2.【物、数】粒子,质点。 3.【语法】虚词,不变词〔冠词、副词、介词、连接词、感叹词等〕;小品词 〔yes, no 等〕,词缀。 4.〔古语〕(文件中的)条,项。 5.【天主教】一小片圣饼。 He has not a particle of sense. 他一点脑子也没有。 fundamental [elementary] particles 【物理学】基本质点,基本粒子。
spectrum n. (pl. -tra ) 1.【物理学】谱,光谱;波谱;能谱,质谱。 2.【无线电】射频频谱;无线电(信号)频谱。 3.【心理学】(眼睛的)余像;残像。 4.〔转义〕范围,幅度;(连续的)系列。 an absorption spectrum 吸收(光)谱。 a bright line spectrum 线状光谱。 an optical spectrum 光谱。 a solar spectrum 太阳光谱。 a wide spectrum of opinion 意见的不同幅度甚大。
The a particle spectrum is monitored with the associated particle method is analyzed . the factors to effect the neutron fluence rate are theoretically analyzed and calculated 对伴随粒子法监测的粒子谱进行了分析,对各种可能出现的谱进行了讨论,对影响中子注量的一些干扰因素进行了理论分析和计算。
In the paper using the cloud particle characteristics and particle spectrum data in different heights , the vertical macro and microstructure or the coagulation water phase can be partitioned into 5 growth layers 本文通过对不同高度上的粒子特征量和谱分析,降水性层状云宏微观垂直结构配置或水凝物主要特性可以分为5个发展层。
According to the experimental data of droplet size 、 particle spectrum range 、 droplet cone shape 、 flow rate 、 cover area and cover area rate which obtained through changing the pressure of power sprayer and the nozzle diameter in greenhouse , this paper made comparative analysis on atomizing performance in same pressure and different nozzle type between same nozzle type and different pressure . the conclusion is that : the ejection rate and the droplet cone shape change with the variation of pressure and nozzle diameter , average particle diameter decreases obviously and particle quantity increases obviously with the increase of pressure and decrease of nozzle diameter . these results will lay experimental foundation for precise spraying 、 low pollution and highly effective operation 本文根据温室内动力喷雾机压力与喷嘴孔径的变化影响雾滴大小、粒谱范围、雾锥形状、流量、覆盖面积及覆盖面积率的试验数据,对相同压力下不同喷嘴型号和相同喷嘴型号时压力不同时的微粒化性能进行对比分析和研究,得到如下结论喷出量与雾锥形状随着压力和喷嘴孔径大小变化而变化;平均粒径随着压力的增加和喷嘴孔径的减小而明显减小;粒数随着压力的增加和喷嘴孔径的减小而明显增多,为精喷量、低污染、高防效的防除作业奠定了实验基础。