HTD

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。

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

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。

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。

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。

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。