1.
retention of subject matter
教材的保持 教材的保持
2.
《Environment protection and sustainable development》tcaching material commentary
《环境保护与可持续发展》教材评述
3.
Taking exercise is one way of keeping slim.
参加锻炼是保持身材苗条的一种方法。
4.
So the wood remains in its swollen dimensions.
所以木材仍保持其膨胀时的体积。
5.
Jogging can keep us in shape.
（慢跑能保持我们的健康（身材）。）
6.
Her daily run keeps her slim.
她每天坚持跑步，这使她一直保持苗条的身材。
7.
"Sight-jogging," which combines sight-seeing and keeping fit at the same time, is the brainchild of a Roman personal trainer, Carolina Gasparetto.
"观景慢跑"，是结合观景同时又保持身材，这是罗马个人教练的独创观念。
8.
I am running so that I can stay in shape.
我跑步是为了保持身材。
9.
Network teaching needs multimedia database.
网络教学需要多媒体素材库的支持。
10.
A Study of a New-type Self-holding Electromagnetic Valve and the Application of Magnetic Material;
新型自保持电磁阀的研制与磁性材料的应用
11.
Materials to be used for structural purposes are chosen so that they behave elastically in the environmental conditions.
结构材料的选择应使其在外界条件中保持弹性。
12.
so I've been training all year and I'm in pretty good shape,
我一整年都在训练并保持了很好的身材，
13.
This kind of Body-Building device reveals the mystery of youthful Beauty for you.
家用健身器材让您领悟保持青春美的奥秘。
14.
These materials are suitable for fabrication of the cage of rolling contact bearings.
这些材料适宜于制造滚动轴承的保持架。
15.
Shape retention is a factor in almost all articles made from polymeric materials.
形状保持性是所有聚合物材料制品共有的因素。
16.
Design of the Data Warehouse in Materials DSS;
器材保障决策支持系统中数据仓库的设计
17.
Some Precautions for Water and Soil Conservation Scheme in Building Materials Industry;
建材行业水土保持方案编制应注意的几个问题
18.
Research on Application of Data Mining in Decision Support of Material Support
数据挖掘在器材保障决策支持中的应用研究