单词	澗壑
释义	澗壑 jiàn hèvalley；ravine简体涧壑
随便看	Copper sulfate electroplating wastewater copper sulfate test copper sulfate treatment copper sulfid copper sulfide copper sulfide mine copper sulfide mineral copper sulfide minerals Copper sulfide ore copper sulfide rectifier copper sulfides copper-sulfied rectifier copper sulfocarbolate copper-sulfur deposit copper-sulfur separation copper-sulfur sequential flotation copper sulphate copper-sulphate copper sulphate pentahydrate copper sulphates copper-sulphates copper sulphatescupric sulphates copper sulphate solution mordant copper sulphate/ sulphuric acid test copper sulphate treatment