1.
dual way check valve
双向止回阀（双通单向阀）
2.
double-channel Mossbauer spectrometer
双通道穆斯堡尔光谱仪
3.
two-channel acoustic emission analyzer
双通道声发射分析仪
4.
dual channel flame photometric detector
双通道火焰光度检测器
5.
dual channel side scan sonar
双通道侧向扫描声纳
6.
double-channel echo well sounder
双通道回声井深测试仪
7.
two-channel gamma-spectrometer
双通伽马射线分光仪
8.
double-channel instantaneous signal recorder
双通道瞬态信号记录仪
9.
Development of PXI Express Dual-Channel A/D Module
PXI Express双通道A/D模块研制
10.
full duplex channel
同时双向通道, 全双工通路
11.
a oboe pitched an octave below the ordinary oboe.
比普通的双簧管低八度。
12.
reversible TV channel
双向[可逆]电视通道
13.
carrier suppressed DSB communication
抑制载波双边带通信
14.
two-way radio link
双向无线电通信联系
15.
Blood sprang to his cheeks.
他的双颊突然涨得通红。
16.
a French window
(通阳台的)双扇落地长窗
17.
two-way radio system
双向无线电通信系统
18.
mutual penetration of the contradictories
矛盾双方的相互贯通