variable adj. 1.易变的,变化无常的,无定的 (opp. constant, steady)。 2.可变的,能变的;变换的。 3.【数学】变量的;【天文学】变光的;【生物学】变异的。 Prices are variable according to the exchanges. 物价跟着汇率变动。 a man of variable character 反复无常的人。 a rod of variable length (伸缩)如意棒。 a word of variable construction 可以作种种解释的词。 variable capital 可变资本。 a variable budget 临时预算。 n. 1.易变的东西。 2.【数学】变量,变数,变项,变元 (opp. constant);【天文学】变星 (=variable star);【航海】(方向不定的)变风,不定风 (opp. trade wind); 〔pl.〕 (贸易风带中的)变风带。 adv. -ably ,-ness n.
These ions pass through a slit of variable aperture and then enter the magnetic field analyzer . 这些离子通过可变宽度的狭缝进入磁场分析器。
Mode field diameter measurement - variable aperture method in the farfield 模场直径测量.远场可变孔径法
Chromatic dispersion measurement of multimode graded - index and single - mode optical fibers by spectral group delay measurement - variable aperture method in the farfield 利用光谱组延迟测量法进行多模渐变折射率光纤和单模光纤的色散测量.远场可变孔径法
Based on the theoretical expression of the average intensity in the fourier transforming and imaging optical system with variable aperture , an algorithm is developed to change the intensity data versus the aperture radius into the bessel - fourier - transform - and - the - inversion of a function of the height - height correlation function . three samples of gaussian correlation are used for the experimental demonstration 在理论分析和实验测量中,我们采用了变孔径的傅立叶变换和成像系统,由所得到的像面光强的解析式,建立了将平均光强随孔径的数值变化关系转化为正逆傅立叶变换对,从而恢复出表面的高度?高度相关函数。