有个男的一只脚绞进剪草机里了。A man caught his foot in the lawnmower.剪草机虽然生锈了但仍然可以使用.The lawnmower is a bit rusty but still usable.不喝啤酒的男人就像没草可割的剪草机一样无用.A man without beer is like a lawnmower without grass....
Shrinkage and dispersed shrinkage are the special waster of ductile iron.缩孔和缩松是球墨铸铁特有的废品现象.The metallocene is summarized as strata, lithology, structure, and especially brittle - ductile shear zone.该区金矿的控矿条件为地层岩性和构造, 特别是...