Central vacuum cleaning installations 中心真空吸尘装置
CENTRAL VACUUM SYSTEMS 中央真空系统
central vacuum 中央吸尘
central vacuum cleaning 中央真空清扫 ; 中央真空吸尘
Central Vacuum System 中央吸尘系统
central vacuum wet suction system 中央湿吸负压系统
roots central vacuum cleaning system 罗茨中央真空吸尘系统
Negative-pressure devices, which act like a vacuum over the bandaged wound, have become a central part of wound therapy in the United States over the last decade.
负压设备的工作原理，就像在包扎的伤口上制造一个真空环境，这种方法在过去十年里已经成为美国伤口治疗的核心部分。
Mount central vacuums on a wall away from the grooming area so only the overhead vacuum hose is in the area where you'll be working.
把中央吸尘器装在一堵远离梳洗区的墙上，这样的话，架空吸尘器的排气管就可以正好放在你将要工作的地方。
In addition, indoor air system, heat recovery systems, central vacuum system, fire doors Solenoid Valve Control system and indoor fire hose system configurations are rare in China.
此外，室内空气系统，热回收系统，中央真空系统，防火门电磁阀控制系统和室内消防水带的系统配置在中国是罕见的。
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