Gathering with high and low pressures  高低压集输

Power supply with high and low voltage  高低双电压驱动电源

high activity polyether  高活性聚醚

Low Unsaturation Polyether Polyols  低不饱和度聚醚多元醇

AREAS WITH HIGH AND COARSE SEDIMENT YIELD  多沙粗沙区

Cationic starch with high degree of substitution  高取代度阳离子淀粉

lightning arrester with low and residual voltage  低残压避雷器

planar graph with high degree  高度平面图

PVC resin with low degree of polymerization  低聚合度PVC

PVC with high degree of polymerization  高聚合度聚氯乙烯

system with low and constant temperature surroundings  恒低温环境

young clinician with high degree  高学历青年医师

Seedlings with high and slim stems  高脚苗

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