Translation of "rung" into Chinese

The guy two rungs above me is pulling in like half a million a week.

这 家伙 两个 梯级 上面 我 就 像是 50 万美元 的 一周 拉动 。

The partial rungs differ in length, but when they pair up with their complements, they make complete rungs of one uniform length.

A、T、G、C这四种半截横档长度不一,但跟另一半合起来后,每个横档的长度就会相同。