介绍了煤矿用带式输送机的一种新型逆止托辊—离心式逆止托辊。

Introduced a new type of idler named centrifugal back idler used in coal mine belt conveyors.

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介绍了煤矿用带式输送机的一种新型逆止托辊—离心式逆止托辊。

Introduced a new type of idler named centrifugal back idler used in coal mine belt conveyors.

youdao