她说这些创伤可能是由前端带有钢钉或尖嘴的中世纪兵器造成的。
Medieval weapons tipped with steel spikes or sharp beaks probably caused these wounds, she proposes.
HDPE及优质镀锌钢钉。
门挡和合叶应该采用不锈钢钉入式梅花机制螺丝加固在螺纹黄铜嵌入件内。
Door stops and hinges shall be secured with stainless steel, pin-in-head Torx machine screws into threaded brass inserts.
实验表明，该技术的运用，提高了钢钉自动排列的效率，为钢排钉的自动化生产提供了新方法。
Experiments prove that the use of the technology can improve the efficiency of steel nails' automatic arrangement and provide new methods of automatic production for steel nails of array.
实验表明，该技术的运用，提高了钢钉自动排列的效率，为钢排钉的自动化生产提供了新方法。
Experiments prove that the use of the technology can improve the efficiency of steel nails' automatic arrangement and provide new methods of automatic production for steel nails of array.
应用推荐