line switching
英
美
- line n.线；界线；皱纹；路线；航线；行；台词；行业；绳子；家族v.排队；画线；加衬里
- switching n.转换；开关动词switch的现在分词形式.
- NOTE 1 The different positions of controls and switching devices are taken into account.
把控制器和开关在置于不同位置的因素考虑在内。
- The switching reliability and long service life are guaranteed by either a silver plated or optional gold plated contact.
镀银的或镀金的接点保证了开关的可靠性和使用寿命。
