Waves from binary stars are mostly low frequency waves ; this makes their signals hard to separate from the earth ' s gravitational field and vibrations in the earth 它们发出的引力波大多数是低频率的,这就使这些引力波难以和地球引力场的震荡区分。
It is shown that cycle of sedimentary wave is response to each order sequence and the character of high frequency wave is correlated with oil source , reservoir and cap rock 通过分析沉积波动周期与各级层序持续时间的对应关系,找出了高频沉积波动特征与生储盖之间的对应关系。
Antenna span , for one , is dictated by the type of broadcast it captures ; an incoming radio - frequency wave resonates best when an antenna ' s length is one half that of the wavelength 原因之一是,天线的全长取决于要撷取的播送类型;如果天线的长度是波长的一半,就能让传来的无线电频率波达到最佳共振。
First , in the field of atmospheric dynamics the developments in dynamics of diabatic waves and low - frequency waves , the dispersive effects of turbulence and nonlinear atmospheric waves are re - viewed 在大气动力学领域,主要介绍了非绝热波和大气低频动力学、湍流的频散效应和大气非线性波动等方向的研究进展。
Abstract : according to the method of limited fourier analysis , the author approaches the real cam by means of n times frequency wave method , and imitates a certain of cam in good performance with the method 文摘:采用有限傅立叶分析的方法,用n次谐波法去逼近真实凸轮,且利用这种方法,仿制某一性能良好的凸轮。