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[主观题]
压缩机的排气量The discharge of the compressor 采用一台大的总比采用两台小的经济It is cheape
r to have one big one than two small ones 备用台数也不宜多,一般为3~4开1备。The number of spare sets should not be more, generally 3 ~ 4 open 1 ready.
提问人:网友justice001
发布时间:2022-01-07
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