1) Chemical maintenance of sterility
化学保持
2) Student persistence
学生保持
1.
Student persistence rate is not only related to distance education institutions to run the social and economic benefits as well as the reflection of their teaching and management level.
学生保持率的高低,不仅关系到远程教育机构办学的社会和经济效益,也是其教学水平和管理水平的反映。
3) Soil and Water Conservation
水土保持学
1.
Teaching reform and practice in the course of Soil and Water Conservation;
“水土保持学”课程教学的探索与实践
4) swelling retention agent
膨化保持剂
5) discipline of soil and water conservation
水土保持学科
1.
Concerning on the teaching system construction of the discipline of soil and water conservation;
水土保持学科教学体系构建的思考
6) soil and water conservation science
水土保持科学
1.
Based on the definition of Soil and Water Conservation(SWC) in Chinese great encyclopedia·agriculture and Chinese great encyclopedia·water conservancy the concept and category of soil and water conservation science in China have been explained.
根据《中国大百科全书·农业》及《中国大百科全书·水利》中水土保持条目的定义说明中国水土保持科学的内涵及范畴。
补充资料：工程化学障碍物(见化学障碍物)
工程化学障碍物(见化学障碍物)
engineering-chemical obstacle
习U·上日、11匕I一9 nuQXue Zhang’aiwu工程化学障碍物(engineelsng一ehemiealobstacle)见化学障碍物。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条