主要用于车体钣金、焊缝、厢体密封，车顶、机械、冷气机风槽接口等金属焊口的密封。
Suitable for sealing of vehicles sheet-mental, wielding lines and wielding joints of buses, Wielding joints of machine and so on…
气流由储风槽通过以皮革 包覆的木制调节瓣，进入 长度不同的音管，振动空气柱发出不同的音高。
Air flows from a reservoir up past leather-covered wooden pallets into pipes of various lengths, vibrating to produce different pitches.
以一个在陆上长久维持并最终演变成温带气旋的登陆台风“麦莎”为研究对象，通过对其北上变性过程的分析发现，台风与中高纬西风槽的相互作用使得冷空气侵入是其变性加强的原因。
Through the analysis, it is shown that the Matsa s extratropical transition and the re-intensification are due to the intrusion of cold air from the upper-level trough into the typhoons circulation.
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