1.
"Keep your hands off the lever," snapped the elevator boy.
“别碰电梯开关，”开电梯的工人不客气地说。
2.
lifts opened and closed by a magic eye
用电眼控制开关的电梯.
3.
a lift, bell, switch that doesn't work
失灵的电梯、 电铃、 开关
4.
a two-way switch,eg at the top and bottom of a staircase
双路开关（如楼梯上下两端的）.
5.
Design of High-power Supply Based on Dissymmetry Step Modulation;
基于不对称阶梯调制技术高压开关电源的设计
6.
Applications to High frequency of Bilinear Resistance Modeled Switched capacitor Stepped Filter;
双线性电阻模型的开关电容梯形滤波器的设计及其高频应用
7.
Her job is to operate an elevator.
她的工作是开电梯。
8.
He who will climb the ladder must begin at bottom .
爬梯子须从第一蹬开始。
9.
He that climbs a ladder must begin at the first step .
登梯须从第一级开始。
10.
rheumatic elevator
开起来摇摇晃晃的电梯
11.
Strips Right-Up:9:05:Strips:Right-Up
阶梯状向右上展开:9:05:阶梯状:向右上展开
12.
Strips Right-Down:9:07:Strips:Right-Down
阶梯状向右下展开:9:07:阶梯状:向右下展开
13.
density-dependent pressure gradient
与密度相关的压力梯度
14.
He then closed the door of the landing.
他随手关拢楼梯口的门。
15.
gradient-related method of statistical inference
统计推论的梯度相关法
16.
I was trapped inside an elevator during the blackout.
停电时,我被关在电梯里。
17.
"Pass along, there," cried the lift-man. "There is room for ten."
“往里走，”开电梯的工人高声说，“这电梯可载十个人。”
18.
The Research and Development of Robot Deburring System for Escalator Step;
自动扶梯梯级机器人去毛刺系统的开发应用