super-strength steel

基本解釋

According to the features of D406A super-high strength steel, five twist drills of different cutting tool material are selected to carry out the drilling tests.
文摘針對D406A超高強度鋼的性能特點，選用了五種麻花鉆進行鉆削試驗。
The properties, process engineering and technical-economic indexes of body yield round steel bolt, high strength twist steel bolt and super high-strength twist steel bolt are introduced.
介紹了圓鋼桿體可伸長錨桿、螺紋鋼高強度錨桿、螺紋鋼超高強度錨桿的特性、加工工藝及技術經濟分析。
The design that super-strength steel of "D6A " and large length-diameter ratio and welding fabrication after being machined in segments are adopted in the overall design of the bomb shape.
總體設計采用超高強度鋼D6A 材料和大長徑比的結構設計，分段加工后進行焊接成型。