备用隔膜泵
supplementary diaphragm pump
波纹管隔膜
corrugated pipe diaphragm
玻璃隔膜压力计
glass diaphragm manometer
补偿隔膜收缩
Compensating the shrinkage of matrix
采用土工膜隔水
insolating water with geomembrane
纯聚丙烯接枝隔膜
pure grafted PP separator
带电网络粘土隔膜
charged-net clay membrane