结果：高频组准确率与低频组相近（P>0 .0 5 ） ，高、低频联合检查组确诊率高于低频组（P<0 .0 5 ）。
Results:Compared to the low frequency group, the diagnosis accuracy rate of high frequency group is nearly P >0 05 and the diagnosis accuracy was raised in high low frequency group.
时域有限差分法将声波基本方程表示为一个时间和空间的迭代方程组，实现对室内声场中低频段的模拟计算。
The acoustical wave equation is presented a serial spatial and time iterative equations and room acoustics field is simulated using finite difference time domain method.
分析了手征介质球壳的低频电磁屏蔽效应，给出了一组手征电磁屏蔽球壳的设计曲线。
The low frequency shielding characteristics of a chiral spherical shell is studied and a group of curves for design is given.
其中治疗组30例常规治疗同时合用低频脉冲磁疗，另外对照组30例采用常规治疗。
Treatment group while 30 cases of conventional treatment combined with pulsed magnetic therapy, another 30 patients with conventional therapy.
治疗组应用低频调制中频脉冲电进行2 ~6个月治疗。
The treatment group were treated with modulated medium frequency impulsed electrotherapy for 2-6 months.
本发明的催眠仪可辅助增加一组对指尖的振动按摩器和一组对失眠穴及指尖施加低频电流的电疗电路，以提高催眠效果。
One finger tip vibrating masseur and one low-frequency current treating circuit to act on the insomnia acupoints and finger tip may be increased to raise the hypnogenesis effect.
哈伯因组总有效率96 %稍高于低频电组94 % ，MQ和MMSE治疗前后评分自身对比增值显著，FAQ总分下降。
The overall effective rate of group I(96%)was slightly higher than that of group II(94%). The score of MQ and MMSE improved obviously and FAQ reduced.
作品由一组配对的低频音响与激光发射器组成。
The installation consists of several low-frequency speakers, each of which is paired with a laser transmitter.
作品由一组配对的低频音响与激光发射器组成。
The installation consists of several low-frequency speakers, each of which is paired with a laser transmitter.
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