... lower homologue 低级同系物(碳数较少的同系物)... lower horizontal plane下水平面,结节间平面... lower house 下议院,众议院...
双语例句
1
A first oblique surface (9) and a second oblique surface (10) which form a certain Angle with the horizontalplane are arranged on the upper surface (5) and the lower surface (6) of the wall module.