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Terms for subject Ecology containing | all forms
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埃克曼Ekman spiral
方头screw bolt
丝管threaded pipe
旋塞screwed plug
旋帽screw cap
旋式离心喷嘴screw-type centrifugal nozzle
流式曝气系统spiral flow system
流池spiral flow tank
纹套管接头screwed socket joint
纹牙screw-thread
纹管screwed pipe
纹管连接screwed pipe coupling
线管开动阀指遥控用的selenoid-operated valve