overhead crane and gantry crane 桥门式起重机
Adjustable high-and-low stroke 高低冲次可调
analysis of low and high runoff 丰枯分析
Axes of high and low temperature 高、低温轴线
circulation of high and low temperature 高低温循环
design high and low water level 设计水位
function of high and low by-pass system 高、低压旁路功能
Gathering with high and low pressures 高低压集输
harbour of big high and low water level difference 大水位差港口
high and low 高低贵贱
high and low altitude jet stream 高低空急流
high and low angles of fire 高低射角
high and low box dam 高低围堰
high and low contrast acuity 高低对比度视力
high and low corrugated structure 高低瓦楞结构
high and low dam combination 高低坝结合
High and Low Electric Distribution 高低压供配电
high and low electromagnetic circle net 高低压电磁环网
High and low flow years of runoff 径流丰、枯年