英语词汇“derrick head block”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	derrick head block
释义	derrick head block [网络] 吊杆头滑车
随便看	refractory element refractory enamel refractory erosion refractory-faced refractory faced refractory fiber refractory fibers refractory fibre refractory fibre product refractory fibre reinforced plastic refractory fibres refractory fireclay block refractory furnace refractory furnace lining refractory gas oil refractory glass refractory glass fiber refractory glass fibre refractory gold refractory gun refractory gun mix refractory gunning equipment refractory hard metal refractory hard metals refractory hot spot 酒有一日之长短酒朋饭友，没钱分手酒朋饭友，难得长久酒未敌腥还用菊，性防积冷定须姜。酒极则乱，乐极则悲。酒极则乱，乐极则悲，万事尽然酒极则乱，乐极则悲，万事皆然。酒极则乱，乐极生悲。酒桌上的话，不算数酒池肉林，履舄交错初交初伏初会初元初具规模初写黄庭初冬初冰初凉初几