whirl tube

基本解釋

The railcar chassis integral whirl tube is characterized in that bearing beams at the left and the right sides of the car body form a hollow cavity;
所述軌道車(chē)輛的底架承載式風(fēng)道，是由車(chē)體兩側(cè)的左、右承載梁夾持形成一中空腔體。
ip.com
According to the functional requirements, their technical characteristics consist of two ways on seal, ceramic package seal weld and tube polysulfone whirl forge seal, and the compact structure.
根據(jù)功能要求，本電氣貫穿件的技術(shù)特點(diǎn)是采取了陶瓷組件封焊和鋼管聚砜旋鍛密封兩種密封方法，以及緊湊的結(jié)構(gòu)方式。