查询词典 double-hung

double step-off pad：双污染隔壁垫

双缝 double slit | 双污染隔壁垫 double step-off pad | 双透射 double transmission

Double step joint：兩段斜接頭

"两阶压缩","Double stage compression" | "两段斜接头","Double step joint" | "双层滤过器","Double strainer"

Double Star Position System：双星定位系统

双主体税:Double-Principal Taxes System | 双星定位系统:Double Star Position System | "新两田制":New Double Land System

double star point：双星点

double star connection ==> 双星形联接=>二重星形結線 | double star point ==> 双星点 | double star rectifier circuit ==> 双重星形整流电路

double-reduction spur pinion：复式减速小正齿轮

double-reduction shaft ==> 复式减速轴 | double-reduction spur pinion ==> 复式减速小正齿轮 | double-reheat steam turbine ==> 中间再热式汽轮机

double-head spring needle knitting machine：汗绒布二用针织机

double-head rail 双头轨 | double-head spring needle knitting machine 汗绒布二用针织机 | double-head turning tool welded with carbide tip 硬质合金双头车刀

double span trussed roof structure：双跨屋架结构

double source ==> 双源 | double span trussed roof structure ==> 双跨屋架结构 | double span wire system ==> 双拉线式

double-face sluice valve：双面闸阀

double-evaporation boiler 两极蒸发锅炉 | double-face sluice valve 双面闸阀 | double-faced box slide valve 双面滑阀

Double Slip Switch：双交叉转辙器

Double Crossover 交叉横越线 | Double Slip Switch 双交叉转辙器 | Double Track 双轨

Double Slip Switch：双交叉转辙器(铁路)

双滑件机构 double slider machanism | 双交叉转辙器(铁路) double slip switch | 双火星塞点火 double spark plug ignition

colonial rule：殖民统治

colonial protectorate;殖民保护地;殖民被保护国;; | colonial rule;殖民统治;; | Colonial Secretary;辅政司;;

matrimonial agency：婚姻介绍所

21 deep love 深沉的爱情 | 22 matrimonial agency 婚姻介绍所 | 23 lover,sweetheart 情人