...30年代，调节阀以阀体形状为球形的球形阀(ballvalve)为主，其后，以V形缺口(V-notch)的单座(single—port)和双座(double-ported)调节阀(globevalve)问世。
基于40个网页-相关网页
这款双座车的一大优势就是车身小巧，能够挤进狭窄的停车空间。
The little two-seater car should be able to squeeze into tightparking spaces.
她看到了那辆小巧的白色双门双座轿车，停在展示厅对面的远方。
She saw that little white Saturn coupe all the way across the showroom floor.
2年前Tesla双座敞篷车的面世证明电动车并不总是没精打采。
The launch of the Tesla roadster two years ago demonstrated that electric cars do not have to be slouches.
应用推荐