工频感应加热线圈的设计与应用 Keywords: Inductive Heat Coil; Main-Frequency; Different Specific Rate of Work; Steel Cylinder Surface [gap=397]关键词： 感应加热线圈；工频；功率比分布；圆筒形钢铁表...
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main frequency 主频率 ; 主要频率 ; 电源频率
main frequency furnace 工频电炉 ; 工频感应炉
main frequency coreless inductio furnace 无芯工频感应电炉 ; 造型机
computer main frequency 计算机主频 ; 计算器主频
main-frequency induction furnace 工频感应电炉
Main Frequency Generator MFG 主频发生器
main frequency coreless induction furnace 无芯工频感应电炉
Main frequency Hz 输入频率
This focusing is the main reason that even relatively weak sounds in the ocean, especially low-frequency ones, can often travel thousands of miles.
正是由于这种集声，即使是海洋中相对微弱的声音，尤其是低频声音，也能传播数千英里。
If the main frequency is near or equal to self vibration of multiplayer construction, the resonate may be occurred, then multiplayer construction will be severity destroyed.
如主频率低到接近或等于多层建筑的自振频率，则有可能发生共振现象，致使多层建筑遭受严重破坏。
If the cross terms of the spatial frequencies for the unit cell of periodical object are much smaller than the main frequency terms, the restriction of the Angle is not necessary.
当周期物体的单胞空间频率交叉项比主频率项小到可忽略的程度时，角度限制失效。
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