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| protection system A series of procedures and devices designed to preserve people, property or the environment from injury or harm (旨在保护人民财产或环境不受损害的过程。) | |||
| ★ protection system | |||
| protective system | |||
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| protection system of a nuclear reactor | |||
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| protection system for WTGS | |||
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保护系统 : 256 phrases in 40 subjects |
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