锡青铜是矿井中作为罐笼罐耳内衬套的主要材料，使用时磨损严重。

The tin bronze is the main lining materials as tank cage and ear in mine, wears seriously in application.

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本文从防潮原理、材料配制及施工方面介绍了用柔性材料——PV C塑料片材做离壁式内衬套的防潮方法。

Here is an introduction of the damp-proof method of off wall inner lining made of flexible materials of PVC plastics, based on the principle of damp-proof, compounding and installed construction.

youdao

本文从防潮原理、材料配制及施工方面介绍了用柔性材料——PV C塑料片材做离壁式内衬套的防潮方法。

Here is an introduction of the damp-proof method of off wall inner lining made of flexible materials of PVC plastics, based on the principle of damp-proof, compounding and installed construction.

youdao