Rugged construction to provide long life.
坚固的结构提供长期的生活。
The parallel blade damper is the ZD series damper. These dampers have been designed to provide long life, silent operation and require zero maintenance.
平行叶片风门是ZD系列风门。这些风门的设计使用寿命很长,运行安静,不需要进行维护。
The orbiter was commissioned to search for evidence that water persisted on the surface of Mars for a substantial period of time - long enough to provide a habitat for life.
这颗轨道飞行器的任务是在火星表面寻找水的证据,而且水量必须足以为生命栖息地维持相当长一段时间。
应用推荐