protein n ladder 蛋白梯
wooden n ladder 木梯
extension n ladder 伸缩梯
n-edge ladder n边梯子
rotation n platform with ladder 带扶梯回转平台
n step ladder-shaped resistance network n级梯形电阻网络
ladder n
梯n
以上为机器翻译结果，长、整句建议使用 人工翻译 。
He knew his next step up the IBM ladder meant a move to Armonk, N.
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模块上移
模块下移
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