1.
Calculation of Tidal Prism and Water Exchange Period and Simulation of Current about Qinzhou Bay
钦州湾潮流模拟及其纳潮量和水交换周期计算
2.
"Alternating current (AC): Flow of electric charge that reverses periodically, unlike direct current."
交流电:周期性换向的电流,和直流电不一样。
3.
On the energy exchange between relativistic electrons in periodic magnetic field and light radiation
周期磁场中的相对论电子与光辐射的能量交换
4.
Delivery schedule ( shipment) in weeksmonths from
交货期（从—起---周月）
5.
In the Northern Wei Dynasty commodity exchange was not popular enough,but ‘no exchange between money and commodities’ was not a fact.
北魏时期 ,商品交换虽处于低迷状态 ,但“钱货无所周流”并非事实。
6.
Transition in the Periodic,quasi-Periodic and chaotic calcium oscillations
周期,准周期和混沌的复杂钙振荡之间的转换
7.
This article mainly addresses the maintenance period of clock frequency of SPC exchanges in China's telecommunication network.
本文主要讨论我国电信网中程控交换局时钟频率维护周期的确定问题。
8.
The Cycle of Change for a Class of Developable Surface Cut-off Lines
基于可展变换下周期曲线的等距变换及其应用
9.
The business cycle is a series of peaks and troughs.
商业周期就是淡旺期交替。
10.
Converts a serial number to a day of the week
将日期的序列数转换成一周中的天数
11.
Semi-period of doubly even order magic square transformed digital image.
双偶阶幻方变换数字图像的半周期
12.
Frequency Conversion Based on Periodically Poled Lithium Niobate Waveguide;
周期极化铌酸锂波导的频率变换研究
13.
Stability and Stabilization Problems of the Linear Peroidic Switched Systems;
周期切换线性系统的稳定与镇定问题
14.
Feature Extraction of Periodic Signal Based on Wavelet Transform;
基于小波变换的周期信号的特征提取
15.
Periodicity and Security Analysis of Arnold Mapping;
Arnold变换的周期性与安全性分析
16.
Markov Model with Regime-Switching and Analysis of Economic Cycle
Markov体制转换模型与经济周期分析
17.
Stability Analysis of a class of Periodically Switched Linear Time-varying Systems
一类周期线性时变切换系统的稳定性
18.
Every week they got together and compared notes.
他们每星期都碰头交换意见。