The film depicts the conflicting and queasy of those who aremany others go overseas.

Only the old and sick at home and tend the farms.

所谓留守农民,主要是指老人和生病的人,他们在照看庄稼地.

Analysis of Speed Regulation of HST of Secondary Rotative Velocity Regulation System

二次转速调节静液驱动系统调速特性分析

Moving Model Speed-testing System of HST

高速列车动模型速度测试系统

Study on the Planning and Construction of HST Comprehensive Transportation Hub Area

高速铁路综合交通枢纽地区规划建设研究

HST Electro& Hydraulic Integrated Circuit and its Computer Control System

HST电液集成回路及其计算机控制系统

This text studied the role and value of health technology assessment ( HTA) as it is applied to hospital management.

笔者探讨了卫生技术评估在医院管理应用中的作用与价值。

Three-dimensional Flow Field Analysis of the Stator in Transonic HTA Turbine

跨声速HTA涡轮导向器全三维流场计算分析

We also tried to explore the basic method of drug HTA.

并探讨基于证据进行药物评估的实用方法。

Synthesis and Evaluation of Amphoteric Copolymer HTB as a Drilling Fluid Additive

钻井液用两性离子共聚物HTB的合成与其性能研究

Thirdly by demonstrating analysis of questionnaire investigation and case study, it illustrates the actuality of traffic disasters and the disadvantages of highway management; meanwhile, it gets the feasibility to construct a highway forewarning management system ( FMS) for HTD in highway administration department.

三是通过实证分析，分析了我国高速公路交通灾害的现实灾情，高速公路的管理问题，探讨了为高速公路管理部门构建交通灾害预警管理系统的可行性。

On the pilot digestor, hydrothermal degradation ( HTD) experiments of lawn-grass by the catalytic action of di-lute vitriol and no additional catalyzer were carried out.

在小型湿解实验装置中，对草坪草进行了加稀硫酸催化和不加任何催化剂的湿解实验。

Topic detection and tracking ( TDT) aims to develop a series of technologies for event based information organization, and hierarchical topic detection ( HTD) is a new task of it.

话题识别与跟踪（topic detection and tracking，TDT）旨在发展一系列基于事件的信息组织技术，层次化话题识别（hierarchical topic detection，HTD）是其中一项全新的任务定义形式。

Fourthly it systematically makes a mechanism analysis about causes of formation of HTD from the angle of highway operating management.

四是从高速公路运营管理角度，系统分析高速公路交通灾害的成因机理。

Characteristic and Application of Energy-saving Blower Used for HTD Series Iron-molen Stove

HTD系列化铁炉节能风机特点及应用

The characteristics and application of HTD energy saying blower for cupola were introduced.

介绍了HTD系列化铁炉节能风机的特点及应用结果，经济效益显著。

Compare the Myocardial Protection Effect of HTK with Other Cardioplegic Solutions

康斯特保护液与其它心脏停搏液心肌保护作用比较

Children HTK HT training; Feeling concord, Intelligence development.

儿童训练；感觉统合；智力开发。

Discussion about Calibration Method for Downward Detection Angle of the Second Generation Machine Type HTK 391

对HTK-391型二代机下探探测角度校准方法的探讨

Research on Mandarin Connected Digit Speech Recognition System Based on HTK

基于HTK的汉语连续数字语音识别研究

Research and implementation of parallel speech recognition based on HTK

基于HTK的语音识别的并行化研究与实现