In one aspect, the electrical contact has a longitudinal axis and includes a substantially tubular, hollow body having a first end and a second end.
在一方面，所述电接触件含有一条纵轴，并包括基本管状的中空主体，所述中空主体第一末端和第二末端。
2
Using a length of tube as the blank, hydroforming technology of tubular parts promise an extensive prospect to produce a variety of complex hollow components.
管壳零件轴压液力成形以管材为初始坯料，可制造各种复杂的空心零件，具有广阔的应用前景。
3
Then, based on the experiment, the moment modification limited value of the tubularhollow continuous slab that meets the requirement of the bearing capacity under a given load was analyzed.