把管端做成钟口状可使气流更畅通。
Belling out the end of the tube will permit a freer passage of air.
法兰部件，消声器，管端闭锁或联结装置及其形成方法和装置。
Flange member, noice silencer, tube end closure or connection device, and forming method and device.
首先工人们把一些热玻璃放到一根长金属管的一端。
First, the workers put some hot glass onto one end of a long metal pipe.
玻璃管两端内侧的电极与一个高压电源相接。
Electrodes inside each end of the glass tube are connected to a high-voltage source.
方法新型泪道探通引流装置由两端金属探子及中间软性硅胶管组成。
Metallic probes were at each end, and a soft silicon tube was in between.
方法新型泪道探通引流装置由两端金属探子及中间软性硅胶管组成。
Metallic probes were at each end, and a soft silicon tube was in between.
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