1.
The second periodicity of element is rise and fall of some properties in elements of the same clan in Parea.
P区元素同族内某些性质的起伏变化称之为第二周期性。
2.
Discussion on Irregularity in the-Second Circle of Nonmetal Elements;
第二周期非金属元素的不规则性讨论
3.
(d) Date, time and place of second substantive meeting with the parties: _______ 1-2 weeks
(d) 各方出席的第二次实质性会议的日期、时间和地点：________1至2周
4.
Theoretical Studies on the Second Period AO_2(A=C,N,O) Molecules;
第二周期AO_2(A=C,N,O)分子的理论研究
5.
The first official result be not expect until tuesday at the earliest
第一批官方结果预期最早要到周二才能出来
6.
The first official result is not expect until tuesday at the earliest.
第一批官方结果预期最早要到周二才能出来。
7.
National Teacher Day is always the Tuesday of the first full week of May.
美国教师节庆祝于五月的第一个整周的星期二。
8.
The Exsistence of Periodic Solution for Second Order Nonlinear Duffing Equation;
二阶非线性Duffing方程的周期解的存在性
9.
Existence of Periodic Solutions for a Class of Second Order Nonlinear Equations
一类二阶非线性方程周期解的存在性
10.
revised third cycle IPFs
订正第三周期说明性指规数
11.
The Problem of Periodic Solutions for Second Order Duffing Equation with Deviating Argument;
二阶时滞Duffing型方程周期解存在性问题
12.
Stability and Hopf Bifurcation of Quadratic Periodic System;
二维周期系统的结构稳定性与Hopf分支
13.
Existence of Periodic Solutions for a Class of Second Order Systems;
关于一类二阶系统的周期解的存在性
14.
Existence of periodic solution for a class of first-order superquadratic Hamiltonian Systems;
一类超二次Hamilton系统的周期解的存在性
15.
Multiplicity of Positive Periodic Solution to Second Order Superliner Singular Equations;
二阶超线性奇异方程的正周期解问题
16.
Periodic solutions for a class of second order nonlinear differential equations;
一类二阶非线性微分方程组的周期解
17.
Finite Element Method to Calculate the Band Gap of Two-dimensional Periodic Structures
二维周期性结构带隙计算的有限元法
18.
Conclusion on existence of periodic solutions for a kind of two-order Hamilton system
一类二阶Hamilton系统周期解的存在性结论