1.
escalator tunnel
阶梯式自动电梯隧道
2.
hierarchic structure
阶梯结构 -宇宙学
3.
solid carbide subland drill
整体硬质合金阶梯钻
4.
aluminum step coverage
氧化物阶梯的铝覆盖
5.
lower echelon automatic switchboard
低级阶梯自动配电盘
6.
autorefrigerated cascade reactor
自冷冻阶梯式反应器
7.
cascade arrangement of tanks
电解槽的阶梯式排列
8.
linear staircase function generator
线性阶梯式函数发生器
9.
step graded index lightguide
阶梯折射率剖面光波导
10.
A file of passengers was coming down the steps.
旅客鱼贯走下阶梯。
11.
They bolted down the gangway and took their tickets.
他们跑下阶梯，买好了票。
12.
She set her basket down on a doorstep.
她把篮子放在阶梯上。
13.
Please help me over the stile.
请扶我跨过这个阶梯。
14.
The broom went up and down the steps.
扫把在阶梯爬上爬下，
15.
It is very big, and has many stairs.
它非常大，有许多阶梯。
16.
Wait until I come up the steps...
等我爬上阶梯再说……。”
17.
Each flight of stairs has 20 steps.
每段阶梯有二十级。
18.
echelon strapping
阶梯式绕带(耦合带)