At a specific layer of a jig bed, its parameters as bulk density, true density, ash content, and density fractions bear a certain relationship.

跳汰机床层某一位置的散密度、真密度、灰分、各密度级含量等床层参数之间存在着一定的相互关系。

youdao

The deluxe bed table is also great for hobbies such as doing jig saw puzzles.

豪华的床头柜也做夹具，如发现有爱好大难题。

youdao

Third chapter introduced simply the engine bed jig designs concept.

第三章简单介绍了机床夹具设计的概念。

youdao