variation n. 1.变化,变动。 2.变量,变度,偏差。 3.【语言】语尾变化;变体,异体;【数学】变分,协变;顺列;【生物学】变异,演变,变种;【音乐】变奏曲;【天文学】变差;(月的)二均差;【物理学】磁差。 a principle without variation 不变的方针[原则]。 be capable of variation 可能变化。 be liable to variation 容易变化。 These prices are subject to variation. 上列价格可能变更。 adj. -al
Co column content is characterized by seasonal variations with the maximum in winter and the minimum in summer , and opposite variation was observed for water vapor in beijing ( 4 ) co柱总量季节变化明显,冬季高,夏季低,而水汽正好相反。
Examples show that the suggested model can reflect the extreme trend of recorded annual runoff dynamic variation with satisfactory simulation and predicting precision 实例研究表明,灰色自记忆模型能很好地反映动态数据序列的极值趋势,且具有较满意的拟合及预报精度。
The variation with the time of the mean density of all particles , electron temperature and their space distributions in the discharge cell are calculated in this paper 使用eme模型模拟计算新型荫罩式结构和传统的表面放电式结构,对这两种结构的模拟结果进行比较分析。
However , in hf band , the band of the antennas is narrow , and the input impedance of monopole antenna with limited height undergoes rapid variation with frequency 但是,在hf频段,有限高无加载单极子天线带宽相对较窄,输入阻抗随频率剧烈变化,难于和50的同轴馈线匹配。
Then , after a more systematic study , we show that variations with respect to fuzzy set functions have many similar properties to those of variations with respect to set functions 而后,通过对其进行较系统的研究我们发现模糊集函数的变差具有许多与集函数的变差极其相似的性质。
Temperature effect is important in calculation theory of concrete filled steel tubular ( cfst ) arch bridge . the main problems about it are the temperature field in space and temperature variation with time 温度问题是钢管混凝土拱桥计算理论中的一个重要问题,其关键在于温度场时间和空间的变化与分布规律问题。
The average values of the transition dates in middle stratosphere and their variations with height . the climatic variability and the interannual and interdecadal variation rule of the transition dates 中平流层环流转型日期的多年平均值及其随高度的变化,各层转型日期的气候变率及异常存在年代际、年际变化规律。
Then , lump loading is used to enhance the valid height of the antennas , as a result the input impedance of the monopole antenna undergoes gently variation with frequency , and consequently it is easy to match by wideband matching network 加载后,输入阻抗变化得到减缓,这是能够使用宽带匹配网络进行宽带匹配的前提,经过宽带匹配达到了天线小型化和宽带化的设计目的。
Any quoted measurement uncertainties will not include allowance for the equipment long term drift , variations with environmental changes , vibration and shock during transportation , or the capability of any other laboratory to repeat the measurement 所有列报的测量误差并不包括因仪器的长期偏差、环境改变、运输途中所受到的震荡及撞击或其他实验所重复该项测量的能力等因素所造成的差异。
This is demonstrated not only by the apparent structural variations with depth in the lithosphere , but also by striking structural con trasts between different lithospheric types , including those of different ages , continental versus oceanic , and cratons versus orogens 这不仅表现为岩石圈性质和结构随深度的变化而且还反映在不同时代、大陆与海洋以及克拉通和造山带岩石圈结构特征的显著差异上。