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.
为了提高凿岩钎杆用中空钢的使用寿命，设计了奇数边截面形状的中空钢。
This paper has also discussed the influence of section shape of steel beam on the heating transfer.
本文还进一步讨论了梁截面形状对传热性能的影响。
The main factors influencing metal transfer are the component of flux, the shape of wire section, the diameter of wire, the thickness of the steel stripe, and the welding parameters.
影响熔滴过渡的主要因素是：药芯组成物、焊丝截面形状、焊丝直径和钢带厚度以及焊接工艺参数等。
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