zero n. (pl. zeros, zeroes) 1.【数学】零;零号。 2.零位;零点,起点;(温度表的)零度,冰点;座标原点;无。 3.最低点;【天文学】天底;【航空】零高度。 4.没价值的人[物]。 5.【军事】= zero hour. the absolute zero 【物理学】绝对零度〔-273.16℃〕。 the air zero 原子弹空中爆炸中心。 fly at zero 超低空(1000英尺高度以下的)飞行。 vt. 1.把(调节器等)调整到零位。 2.把…减少到零位。 zero in 1. 调整(枪炮的)射距,把(枪炮等的标尺)调整到标准无风部位瞄准。 2. 把(火力)对准目标 (on)。 zero out 给…以免税待遇(to zero out funding for public broadcasting 对用于公共广播的经费实行免税)。 adj. 1.零(度)的。 2.【气象学】云幕低于50英尺,能见度小于165英尺的。
Study of non - zero offset fresnel zone 非零炮检距菲涅耳带研究
Trough the staggered - mesh finite difference simulations of the wave equations , simulated the propagation of the seismic wave and the relevant zero offset time record in the 2d viscoelastic random medium models 摘要通过交错网格有限差分正演,模拟了平面地震波在二维粘弹性随机介质模型中的传播及其自激自收时间记录。
This paper , through the staggered - mesh finite difference simulations of the wave equations , simulated the propagation of the seismic wave and relevant zero offset time record in the various transversely isotropic elastic random medium models 摘要本文通过交错网格有限差分正演,模拟了平面地震波在二维横各向同性弹性随机介质模型中的传播及其自激自收时间记录。
Based on the similarity of common reflection point trace gathers in one coherent zone , crs stack can focus more energy on the vicinity of the reflector , and therefore can obtain a high signal - to - noise ratio zero offset section by stacking events with the same phase 共反射面叠加利用了邻近多个共反射点道集的相似性,提高了资料的覆盖次数,从而压制了随机噪声,增强反射波同相轴的连续性,大幅提高了地震资料的信噪比。
In general , a precise resistor is in series with one of the resistors in wheatstone bridge to compensate the zero offset , and the other one is in parallel with another arm of the wheatstone bridge to compensate thermal zero drift . based on this principle , in this paper , a compensation method based on virtual instrument technology has been put forward . actuated by current source , a good calculation method of compensation resistors and their position in the bridge is deduced 本文基于串并联电阻补偿法的原理,提出了一种基于虚拟仪器的误差补偿方案,推导了在恒流源供电下可以精确的计算出补偿电阻大小和补偿位置的算法,并且在虚拟仪器软件平台labview上完成了数据采集、处理、显示等软件的设计,经过实验的验证,对传感器的零点温度漂移补偿取得较好的效果,而对灵敏度温度漂移的工艺补偿亦有一定的效果。