There exists a collision phenomenon in the protection law of knowledge property at present in China such like cross of right, double protection, and multi-protection.
我国目前的知识产权保护中存在有权利冲突现象，包括权利交叉、双重保护、多重保护等。
Ultra-large spaces and multi-protection areas should be protected by low pressure CO2 system.
超大空间、超多防护区应采用低压二氧化碳（CO2）灭火系统。
Ultra-large spaces and multi-protection areas should be protected by low pressure CO2 system.
超大空间、超多防护区应采用低压二氧化碳（CO2）灭火系统。
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