The gooseneck goes only a short distance into the cylinder and then bends to the cylinder side opposite the valve outlet.
鹅颈管只伸入钢瓶内部较短的距离，弯曲到阀门排气口对面的钢瓶内侧。
The perpendicular distance from the base of a geometric figure to the opposite vertex, parallel side, or parallel surface.
平行面（底面）且侧面都是平行四边形的多面体。
The perpendicular distance from the base of a geometric figure to the opposite vertex, parallel side, or parallel surface.
平行面（底面）且侧面都是平行四边形的多面体。
应用推荐