运营、管理和维护 | |
commun. railw. | Operation, Administration and Maintenance |
中心 | |
gen. | core; hub |
econ. | center; centroid |
interntl.trade. | hub |
sport. | kernel |
tech. | centre |
wind. | center |
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Operation, Administration and Maintenance | |||
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operations, administration and maintenance |
运营,管理和维护: 2 phrases in 1 subject |
Telecommunications | 2 |