词汇	drum trap
释义	drum trap 鼓式存水弯,鼓式凝气阀
随便看	vertical-incidence transmission vertical incidence virtual height vertical incident solar rays vertical incident transmission vertical incision vertical inclination angle vertical inclined plate sedimenta-tion vertical index vertical index bubble vertical index error vertical index level Vertical Indicating Gyro Internally Lighted vertical indicator vertical-indicator vertical indices vertical induction furnace vertical induction motor vertical industrial linkage vertical industrial networks Vertical Industry Portal vertical-industry views vertical infection vertical information service vertical ingot vertical inheritance