“上壳”怎么读？

变送器上壳连有热电偶烧毁保护接线.The transmitter is wired for up - scale thermocouple burn - out protection.旋流器上壳内独制的橡胶衬套可利于混合料的输送.And uniquely - made rubber bushing block on the swirler benefits mixture delivery.研究结果表明,排山楼金矿的容矿围岩是一套以英云...

“上壳”的英语可以翻译为：epitheca ...