n.钟形口
The suction of the plunger should be designed as type of streamline or bell mouth, which would decrease the suction resistance. 应考虑将柱塞的吸入口设计成流线型或喇叭口型，以降低其吸入阻力。
Anchor chain hawser pipes shall be mounted on the port and starboard of the ship, made of steel plate.A casting anchor bell mouth shall be fitted at the lower end of hawser pipe. 锚链筒布置在船舶左右两舷，由钢板制成，每隔锚链筒的下端有铸钢锚唇。
Bell Mouth Spinning Forming Technology 集流器旋压成型技术
The church bell tolled the hour. 教堂的鸣钟报时。
Test of axial-fan performance with different bell mouth 集流器对轴流风机性能影响的试验研究
