anti-heat-chalk  超温笔

as like as chalk and cheese  形似而实质不同

automatic chalk line box  自动粉线匣

black chalk  黑垩

black stump chalk  黑炭粉

blue chalk  蓝粉笔

camphorated chalk  樟脑化白垩

CERAMIC CHALK  陶瓷粉笔

chalk brood  粉笔样虫仔病; 章地埔拉病毒

chalk characters  粉笔字符

chalk degree  垩白度

chalk deposit  白垩沈积

chalk drawing  粉笔画

chalk emulsion  白垩乳状液

chalk finish  白粉整理

chalk for billiard cue  台球球竿用粉笔

chalk grain  垩白米

chalk holder  粉笔盒

chalk it up  宣布