The steel sample is molten by radio freguency induction heating in pure nitrogen flow.
试样在高纯氮气流中用高频感应加热熔融。
We have discovered that the signal freguency receivered driffes off and small in making up the receiver of 882F freguency modulation.
在882F调频接收机组装过程中发现，调频接收频率偏小。
Treating a bowl of centrifuge as a clamped-free thin-walled cylinder, fromulas to calculate natural freguency are given by using Rayleigh's energy method.
本文将离心机转鼓视为一端固支、一端自由的薄壁圆筒，用瑞利能量法推导其最低阶固有频率，所得结果具有工程运算所需精度。
Treating a bowl of centrifuge as a clamped-free thin-walled cylinder, fromulas to calculate natural freguency are given by using Rayleigh's energy method.
本文将离心机转鼓视为一端固支、一端自由的薄壁圆筒，用瑞利能量法推导其最低阶固有频率，所得结果具有工程运算所需精度。
应用推荐