1) vibrating compaction
双频合成
2) double-frequency composed vibration
双频合成振动
1.
And taking a example of double-frequency composed vibration compaction, the theoretical analysis, experiment and dynamical simulation were carried on in the paper.
为了强化压实过程，本文提出多频合成振动压实方法，即任一时刻有多个激振频率及其对应的振幅同时作用于被压实材料上，使被压实材料大小不同的颗粒同时处于共振状态的压实方法，并以双频合成振动压实为例进行了理论分析、试验和动力学仿真研究。
3) dual frequency
双频
1.
Design of the reflector shape for dual frequency base-station antennas;
双频基站天线中的反射板形状设计
2.
On the basis of different behaviors of alternative electromagnetic field for induction and electromagnetic shaping, the process of dual frequency electromagnetic shaping of molten metal was firstly presented.
从固态金属感应加热熔化和液态金属电磁成形两个角度出发 ,讨论了金属熔体双频电磁成形中的频率选择 ,物理量的分布以及两种双频电磁成形的试验过程。
3.
On the basis of the theory of electromagnetic shaping, the concept of dual frequency electromagnetic shaping of liquid metal was presented, which mean that the one frequency electromagnetic field is used to melt the solid metal above its melt temperature and the other frequency electromagnetic field is used to make the liquid metal to a final shape.
对液态金属电磁成形的物理和数学模型进行了分析 ,提出了双频电磁成形的方法 (利用两种频率的电磁场实现固态金属无接触加热熔化和熔化后的金属无模壳电磁成形 )和原理。
4) dual-frequency
双频
1.
Design of mutimode & dual-frequency microwave sintering furnace;
多模腔双频微波烧结炉的设计
2.
Novel Design of an H-shaped Dual-frequency Microstrip Antenna;
新型h形双频微带天线的设计
3.
Design of Dual-frequency and Dual-circular-polarization Microstrip Antenna;
双频双圆极化微带天线实验设计
5) double-frequency
双频
1.
Analysis and inspection of double-frequency clock use in Linux kernel;
Linux内核采用双频时钟的分析及检验
2.
There are few ultrasonic generators for sludge treatment specifically, so we designed a double-frequency ultrasonic generating trough which could adjust frequency, energy density and treating time flexibly.
同时,单频超声波处理后污泥的厌氧产气累积增量高于双频超声波,为40。
6) dual-band
双频
1.
Design of dual-band circularly polarized annular slot antenna for wireless local area network applications;
无线局域网的双频圆极化圆环缝隙天线设计
2.
Design and simulation of novel dual-band microstrip antenna;
一种新型双频微带天线的设计与仿真
3.
Design of a Dual-band Dual-Polarization Stacked Microstrip Patch Antenna;
一种双频双圆极化层叠结构微带天线的设计
参考词条
补充资料：冈伯格-巴赫曼频哪醇合成
分子式：
CAS号：
性质： 两分子醛或酮在乙醚、苯等溶剂中在镁和溴化镁(或碘化镁)作用下,偶联成频哪醇衍生物,经水解成为频哪醇。是合成这类化合物的重要方法。
CAS号：
性质： 两分子醛或酮在乙醚、苯等溶剂中在镁和溴化镁(或碘化镁)作用下,偶联成频哪醇衍生物,经水解成为频哪醇。是合成这类化合物的重要方法。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。