对外联系的英文

对外联系的英文：
outside contact

Of a selector, a moving contact that engages with the contacts of a bank.
与存储单元的触点相啮合的选择器滑动触点。

If someday I will not contact you, will you contact firstly and initiatively?
如果有一天我不再和你联系，你会主动跟我联系吗？

He have many contact in the city.
他在城里有不少熟人。

No, I have no contact with her.
不，我和她没有一点儿联系。

You can contact us by email.
你可以通过电子邮件和我们联系。