当一个或几个小装置发生泄漏或破损时，其余的小装置仍能基本维持装置的功能，提高装置的安全性能。
If there's leakage or dilapidation of one or more smaller devices, the left can work as before, so to improve the safety.
当一个或几个小装置发生泄漏或破损时，其余的小装置仍能基本维持装置的功能，提高装置的安全性能。
If there's leakage or dilapidation of one or more smaller devices, the left can work as before, so to improve the safety.
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