查询词典 double-entry system

automatic block system：自动闭塞

双线继电半自动闭塞 double track all-relay semi-automatic block system | 自动闭塞 automatic block system | 单向自动闭塞 single-directional running automatic block

a system of taxes and corvee：赋役制度

双主体税:Double-Principal Taxes System | 赋役制度:a system of taxes and corvee | 税费改革:Reform of taxes and fees

conjugated double bond：共轭双键

305. conjugated diene 共轭二烯烃 | 306. conjugated double bond 共轭双键 | 307. conjugated system 共轭体系

conjugated double bond：共轭双键本文来自:博研联盟论坛

305. conjugated diene 共轭二烯烃本文来自:博研联盟论坛 | 306. conjugated double bond 共轭双键本文来自:博研联盟论坛 | 307. conjugated system 共轭体系本文来自:博研联盟论坛

conjugated double bond：共轭双键HHC化学化工资源导航

305. conjugated diene 共轭二烯烃HHC化学化工资源导航 | 306. conjugated double bond 共轭双键HHC化学化工资源导航 | 307. conjugated system 共轭体系HHC化学化工资源导航

isolated double bond：孤立双键

isoionic point 等离子点 | isolated double bond 孤立双键 | isolated system 孤立系

improper double integral：反常二重积分

球面坐标系中的体积元素 volume element in spherical coordinate system | 反常二重积分 improper double integral | 曲面的面积 area of a surface

double-roofed glasshouse：双屋面温室

double-light frame 双面进光骨架 | double-roofed glasshouse 双屋面温室 | drip irrigation system 滴灌系统

a double *A degree system：双学士制

数学系 Department of Mathematics | 双学士制 a double *A degree system | 水产技术学校 marine products technical school

double tackle：二重滑车

"double system of ignition","双重点火系统" | "double tackle","二重滑车" | "double tail-phone receiver","双耳受话器"

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