1) double frequency alternator
双频发电机
2) double frequency generating set
双频发电机组
1.
The discussed advanced design of working reliability about the unilateralism automatic clutch of double frequency generating set;
浅谈双频发电机组单向自动离合器工作可靠性的优化设计
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：双水内冷汽轮发电机
巨型汽轮发电机的一种。因定子绕组和转子绕组都用空心铜线并通以水冷却而得名。因水的比热大，且可直接带走热量，故可提高发电机的效率。与其他冷却方式的电机相比，用相同的材料，可制造功率更大的电机。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。