log loader grapple是什么意思

用法例句

This thesis ,based on the poor wear resistance condition of grab bucket of loading machine, adopting powder flame spraying-welding method, prepared compound coatings with good abrasion resistance on the substrate of 45 steel(cabon steel which contains 0.

本文针对港口、矿山机械装载机抓斗斗口板不耐磨的情况，采用粉末火焰喷焊工艺，在45钢表面上制备了耐磨抗蚀性能较好的复合涂层，并对喷焊层的组织、耐磨耐蚀性能进行了研究。