Expatiating this studies' background, investigation meaning, and investigation contents.

In their centuries old development of a rule of law system, Western countries have already established a relatively scientific and comprehensive juvenile protection system, including its juvenile criminal background investigation system.

在西方国家数百年的法治建设进程中，包括未成年人犯罪背景调查制度在内的未成年人保护制度已经发展得较为完备和科学。

Objective: Through the background investigation of the subtypes of chronic atrophic gastritis ( CAG) and its intestinal metaplasia ( IM), as well as dysplasia and gastric cancer, to analyze the clinical course of CAG associated with Helicobacter pylori ( Hp).

目的：对幽门螺杆菌（Hp）相关性萎缩性胃炎分型、肠化分型和不典型增生进行背景调查，探讨Hp感染在萎缩性胃炎发展中的作用。

Making a good job of a background investigation of alien species to establish a database;

搞好外来种的本底调查，建立现状数据库；

A Study in Issues Relating to Copyright Protection of Background Music

背景音乐著作权保护问题研究

I've just finished a piece of background music.

我刚完成了一首背景音乐。

Joe Loss started off playing piano background music for silent films in the 1920s.

乔·洛斯先是于20世纪20年代为无声电影弹奏钢琴背景音乐。

The application of the background music in obstetric nursing;

目的探讨妇产科护理实践课教学改革的运用效果。

Chinese background music to nostalgia and modern rhythm combination.

歌曲以怀旧的中国背景与现在的节奏结合。

A review of the application of background music in hospital

背景音乐在医院应用的必要性

Company background music and other weak systems

公司背景音乐等各种弱电系统

Some thought on application of background music in medicine study

刍议背景音乐在医学学习中的应用

Application of Background Music in English Extensive Reading Class

背景音乐在英语泛读课程中的应用

Application of background music in conscious patients undergoing operation

背景音乐在清醒手术病人中的应用

Lighting and background music were used and the stage was very beautiful.

灯光和配乐用得很好，舞台布景非常漂亮。

Application of background music in breast tumor patients undergoing local anesthesia surgery

背景音乐在局部麻醉下乳腺肿瘤手术中的应用

Tip Some people work best with low-volume background music.

小贴士：有人听着声音较低的背景音乐工作效率最高。

"On" the background music well, like it can be exported!

“关于”的背景音乐不错，喜欢的话可以导出！

Add background music, big increase in touch sensitivity.

加入背景音乐，游戏触屏灵敏度大幅度提升。

Visual FoxPro Process of the Realization of the Background Music Method

VISUAL FOXPRO程序中背景音乐的实现方法探讨

The background music is very popular and I like it very much.

背景音乐相信是非常熟悉的，我很喜欢。