一种定义
四种语言
0,1,2
- 德國
- 英語
- 中國
- 西班牙語
使通风 (v)
lüften (v)
air (v)
For connecting profiles used as compressed air conduits, the Universal Fastener is also available in a special version (Section 6.2 Pneumatic Applications).
No building standards stipulate which direction stairways should take.
Always disconnect the Light Fitting from its power source before conducting any maintenance or repair work.
