道碴 dàozhǎ ballast Definitions Defs Origin Strokes Stroke Words Sentences Sents 道碴 dàozhǎ ballast 碎石 suìshí, 矿渣 kuàngzhā, or gravel used as a base for a railway track to support the sleepers Cross-References Variant of 道砟 dàozhǎ
道碴 dàozhǎ ballast 碎石 suìshí, 矿渣 kuàngzhā, or gravel used as a base for a railway track to support the sleepers Cross-References Variant of 道砟 dàozhǎ
