为了使炉具绝缘，陶瓷衬里是实验室里的一种选择，但是它们运输困难而且大批量生产时品质不稳定。

For insulating the stoves, ceramic linings are the materials of choice in the lab, but they are difficult to ship and present problems of consistency for mass production.

youdao

它是种奢侈品还是大批量生产的产品。

Is this a luxury good or is it mass market thing?

youdao

它是一种预先装配好的、大批量生产的个人计算机。

It is one kind pres-assemble well, the mass production personal computer.

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