查询词典 double back

double wharfage：加倍码头费(船舶未付码头费离港

double wedged boat 直框结构船 | double wharfage 加倍码头费(船舶未付码头费离港 | double whip system 分钩装卸法(一根吊货杆将货由岸吊到甲板

double whips：雙鞭

73) 雙鉤 double hooks | 74) 雙瞷 double maces | 75) 雙鞭 double whips

Double dotted whole note：复附点全音符

"复附点三十二分音符","Double dotted thirty second note" | "复附点全音符","Double dotted whole note" | "复呈示部","Double exposition"

double-channel super-short-wave wireless telephone：双工超短波无线电话机

double-channel planar buried heterostructure laser 双通道板状掩埋式异质结构激光器 | double-channel super-short-wave wireless telephone 双工超短波无线电话机 | double-check snow plough 双侧板式雪犁

double-sheave wooden block：双轮木滑车

double-sheave top lift block 双轮千斤索滑车 | double-sheave wooden block 双轮木滑车 | double-sideband suppressed-carrier modulation 抑制载波的双边带调制

double wristlock：雙手抓腕

抱雙腿摔 double-leg hold and pick-up; double-leg tackle | 雙手抓腕 double wristlock | 轉體彎腰躲閃 drop-away

double-folded astigmatically compensated optical cavity：双折光式像散光学共振腔

double-focusing mass spectrometer 双聚焦质谱仪 | double-folded astigmatically compensated optical cavity 双折光式像散光学共振腔 | double-Gauss derivatives 双高斯型物镜变型

double barreled drilling：双筒钻井

double angle formula 倍角公式 | double barreled drilling 双筒钻井 | double bend 双弯头

double ended boller：双头锅炉

两头船,两头机,两头镘,两头件 double ended | 双头锅炉 double ended boller | 两头电线(交换机) double ended cord

double carbonatation：复式碳酸法

"double cambered airfoil","双弧翼形" | "double carbonatation","复式碳酸法" | "double catenary suspension","双悬链线悬吊"

air ventilator：通风管

air purifier 空气滤清剂 | air ventilator 通风管 | air-bleed 空气分泄器

sound motion picture, talkie：有声电影

silent cinema, silent films 无声电影 | sound motion picture, talkie 有声电影 | cinemascope, CinemaScope 西涅玛斯科普型立体声宽银幕电影,变 形镜头式宽银幕电影