三步走战略的英文：
the three-step development strategy
num. 三，三个
three coat,three bake
“三涂三烘” 工艺(反复涂三道漆，烘干三次的施工方法)
fiveteen contains five and three.
15可被5和3除尽。
To draw three feet of water
吃水三尺
n. 脚步；步态，步伐；步骤；措施；阶段，等级；台阶，平台；舞步
v. 踩，踏；跨步，行走；跳舞；使成阶梯状
step by step welding
跨步焊法
It is a step class.
这是踏板操训练班。
They are not in step with the times.
他们跟不上时代的步伐。
n. 发展，扩展；发育；研制，开发；进展；新建住宅区，开发区
development parameter
发展参数；发展规范
development of gas
放出气体；放出毒气
Coordinate economic development with social development
把经济发展和社会发展结合起来