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复式指示器；双针指示器
1、dual carriageways───n.<英>（中间有分隔带的）复式车行道( dual carriageway的名词复数 )；双行道；[交]双线车道；双程分隔车道
2、indicator───n.指标，标志，迹象；指示器；[试剂]指示剂；[计]指示符；压力计
3、dual flow───双流
4、dual problem───[数]对偶问题；成对问题，对偶问题
5、flushness indicator───平齐度指示器
6、dual───vt.把……改为双幅车道；n. (Dual)（法）迪阿尔（人名）；adj.双的；双重的；n.双数；双数词
7、indicator variable───指标变数，指标变量；[统计]指示变量
8、dual carriageway───双行道；[交]双线车道；双程分隔车道；n.<英>（中间有分隔带的）复式车行道
9、indicator constant───指示剂常数
1、Dual - wavelength and dual - indicator catalytic kinetic spectrophotometry for determination of trace nitrite───双波长双指示剂催化动力学光度法测定痕量亚硝酸根
2、A new model was brought forward to calculate the heat release rate curves of a diesel LPG dual fuel engine on the basis of indicator diagrams measured by a combustion analyzer.───提出了一种根据燃烧分析仪测录的示功图计算LPG -柴油双燃料发动机燃烧放热规律的新模型。
3、Study on the dual-wavelength and dual-indicator catalytic kinetic spectrophotometry for determination of trace silver───双波长双指示物催化动力学光度法测定痕量银的研究
4、User alignment is easy, with dual mirror configuration, voice guidance, and a distance indicator.───用户定位的时候也很方便，因为它有双镜配置，语音指导和距离指示。
5、Dual-indicator Catalytic Spectrophotometry for Determination of Trace Vanadium in Rice and Flour───双指示剂催化光度法测定大米及面粉中痕量钒