sealed relay

石油英语词汇(S2)--石油百科 ... sealed proposal 密封投标 sealed relay 密封式继电器 sealed reservoir 封闭储集层 ...

1 2 3 4 5 ... 密封式制冷压缩机^ sealed refrigeration compressor 密封继电器^ sealed relay 封闭放射源^ sealed source ...