秋千那边一群男孩吵吵嚷嚷，想要把秋千生锈的铁链从最上面的铁杆上绕过去。
A group of boys were playing rowdily on the swings, trying to twist the rusty chains around the topmost pole.
针对青铜器受土壤、水、氯化物等的侵蚀而产生锈蚀且容易蔓延的特点，研制出青铜器有害锈转化剂和青铜保护剂，可将有害锈转化为无害锈，然后再进行保护。
For the corrosion of bronze by the soil, water and chloride and its easily corrosionspreading, the bronze protection agent for harmful erosion conversion is studied and produced.
应用推荐