half crown是什么意思
中文翻译与英英解释
半克朗〔英国旧银币名，合2先令6便士〕。
half: n. (pl. halves ) 1.半，一半；一部分。 ...
crown: n. 1.(胜利的)花冠；荣誉；〔美俚〕锦标。 2.王冠 ...
an English coin worth half a crown
例句与用法
90 reduced countersunk head half crown rivet
90小沉头半冠状铆钉
90 countersunk head half crown rivet
90沉头半冠状铆钉
Aircraft assembling technology reveting of interfere fitting for half crown rivets and conhead rivets
飞机装配工艺半冠状铆钉平锥头铆钉干涉配合铆接