Effect of low freqency vibration on solidified behavior of ferro-carbon alloy was inspected in sand-mold Casting.
本文研究了在普通砂型条件下，低频振动使铁碳合金凝固组织的影响。
The results showed that there was a better correlation between the first natural freqency( f ) and sugar contents of watermelon.
研究表明，传统的判断西瓜成熟度的含糖量与西瓜的振动基频有较好的相关关系。
The speed on line can be continuously regulated. The speed remains constant as the freqency being set up. It can save 40% energy consumption.
生产线上速度连续可调，频率设定后速度保持恒定，同时也取得了节能40％的效益。
Under new boundary restraint condition in accordance with the actual working condition of the machine, the torsional freqency response is computed with complex transfer matrix method.
进而在符合机床实际加工状态的边界约束条件下，利用传递矩阵法对传动链扭振特性作了计算分析。
These jamming signals are utilized to test and analyze the performance of frequency hopping and the jamming capability of multiple jamming signals anti freqency hopping transmitter receiver.
以这些干扰信号来检测分析跳频电台的性能，检验各种干扰信号对跳频电台的干扰能力。
These jamming signals are utilized to test and analyze the performance of frequency hopping and the jamming capability of multiple jamming signals anti freqency hopping transmitter receiver.
以这些干扰信号来检测分析跳频电台的性能，检验各种干扰信号对跳频电台的干扰能力。
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