The one-child policy has been in place for three decades.

Birth control policy is essential to our social and economic system.

计划生育政策是我国社会经济政策体系中的重要组成部分。

They are very aggressive in pursuing the policy of birth control.

他们积极拥护计划生育政策。

The Effects of Population and Family Planning Policy Changes on Intergenerational Relations

人口与生育政策变动对代际关系的影响

Family planning policy have brought into effect in China about 30 years, a lot of families which practice family planning have made a great contribution to reduce population, save social alimony and improve GDP per person.

计划生育政策实施30多年来，广大计划生育家庭为国家降低人口数量、节约社会抚养费用、提高人均GDP等做出了巨大的贡献。

On Some Basic Ideological Issues in Adjusting China's Fertility Policy

关于调整中国生育政策需要解决的几个基本认识问题

China introduced its so-called one-child policy in the late 1970s.

中国在20世纪70年代末推出了计划生育政策。

The one child policy is largely to blame.

而这种现象的背后，很大的一个原因是计划生育政策。

China's One-Child Policy and the Empowerment of Urban Daughters

中国的计划生育政策与都市独生女的赋权

Why China urgently needs to change its birth control policy.

为什么中国急需改变计划生育政策？

Parity-Intensification Effect: Birth Planning Policy and Sex Ratio at Birth in China

胎次-激化双重效应：中国生育政策与出生性别比关系的理论构建与实证研究

What do you reckon the birth control policy?

你如何看待计划生育政策？

English Grammar Guided by the Dialectical Materialism

辩证唯物主义在英语语法教学中的实践

The Chang' E-1 Lunar Orbiter ( CE-1) took Microwave radiometer of four channels ( 3.0,7.8,19.35,37GHz). One important task of CE-1 is for detecting the thickness of the lunar regolith though the measured brightness temperature from the CE-1 microwave radiometer.

我国嫦娥一号探测卫星搭载了四个通道（3.0,7.8,19.35,37GHz）的微波辐射计，其中一个重要任务是通过多通道微波辐射亮温反演整个月球表面月壤厚度的分布。

In the previous lunar exploration activities, the thickness of lunar regolith is allalong concerned by scientists.

在以往的月球探测活动中，月壤厚度一直都是科学家关注的对象。

Helium-3 in Lunar Regolith

月壤中的氦-3

Methods and advances in research on lunar soil thickness

月壤厚度的研究方法与进展

A Preliminary Study of the Dielectric Properties of Lunar Soil Simulants

模拟月壤微波介电特性的初步研究

The pressuresinkage model and shear model of the lunar rover passing on lunar surface were described.

描述了月面探测车辆行驶下的月壤承压特性模型与剪切特性模型；

After comparing the inverse results from different method, RT method is chose to estimate the thickness of lunar soil.

又因DGF方法比较适用于严格分层媒质，而月表并非严格双层结构，因此在月壤厚度评估中，选用RT方法对月壤厚度进行评估比较合适。

Design and Dynamic Characteristic Research of Month Soil Sampling Mechanical ARM

月壤采样机械臂设计及动态特性研究