The new synthetic rubber is being tested to see if it can be mixed with metal and other materials now used in making tires.
这种新的合成橡胶正在接受测试看是否能和金属以及目前制造轮胎的其它物质混合。
2
Valve flap can all be made of metal can also be embedded in the metal on leather, rubber, or synthetic coverage, depending on the use of performance requirements.
阀瓣可以全部用金属制成，也可以在金属上镶嵌皮革、橡胶、或者采用合成覆盖面，这取决于使用性能的要求。
3
The point of this dissertation is to explore and study new synthetic routes to metal sulfides with one-dimensional nanostructures.