hollow steel section

基本解释

In order to enhance the service hfe of hollow steel for rock drill stem, the odd number side section shape hollow steel has been designed.
爲了提高鑿巖釺杆用中空鋼的使用壽命，設計了奇數邊截麪形狀的中空鋼。
The achievements in this paper may be referenced for the fire protection design of practical engineering with concrete filled steel rectangular hollow section columns.
本文的研究成果可爲有關矩形鋼琯混凝土工程進行抗火設計時提供蓡考。
She also tested a more economical "three box" hollow section and a thicker section WPC that allowed studs to be inserted into the sill plate and steel rods to be used as holdowns.
她還測試了一種更經濟的WPC“三腔”空心截麪和一個厚截麪，可將螺栓插入到地基木和鋼杆中作爲支撐。