The Property of Environmental Impact Assessment is Its Practicability;

Practicability of Hydro cyclone-Ultraviolet Treatment of Ship's Ballast Water;

Study on Practicability of ISO 14405:2001;

Explicit purpose and practicality should be emphased in the trainning work of safety and technique;

Study on practicality and recreation of teaching Japanese as a second language——on Japanese teaching mode Aiming at "happy Japanese teaching";

Practicality and Scientificity of the Teaching Practice of Instrumental Analysis Course;

The Utility and Growth of Child's Furniture;

On Utility in Teaching Material Preparing: An Empirical Survey from Medical Students;

The classifies of the way of height forecast and the analysis on its practical application;

Analysis of this practical,modern and dynamic on line dictionary in this thesis offers references for its users.

In view of various coal mine user's need,to two produced SGB630/220 which the factory purchased to transport the mechanical and cable tank ledger wall connection spot to make the improvement,enabled its cable tank to exchange the use indicated after the user use result that,the improvement program is reasonable,has the good interchangeability and the usability.

Calligraphy art "the expression" effectiveness,the calligraphy art usability as well as the traditional calligraphy mainstream creation community s status particularity are the most main reasons.

Piano extemporaneous accompany is an integrated arts of skills,usability,innovation,and artistry,which requires that the player should hold a concentration of piano technique,basic music theory and super artistic attainment.

Research on Technicality & Practical Applicability of Invention;