| 1. | Water effects on shock wave delay in free fields
在开阔空间中水对爆炸冲击波的削波作用 |
| 2. | Two people walk on a cross - country slope built on a snow - free field in southeast switzerland
瑞士东南部一处没有降雪的野地里，有两名路人走在越野滑雪坡道上。 |
| 3. | Acoustics - test code for the determination of acoustical characteristics of sound barriers installed in a free field
声学.无声波场中安装的隔音设备的声学特性测定用试验规程 |
| 4. | Due to the vibration feedback from super structure , the motion of foundation is different from that of free field
上部结构柱顶加速度反应主要由基础转动引起的摆动分量组成，平动分量次之，而弹性变形分量很小。 |
| 5. | Acoustics . determination of sound power levels of noise sources using sound prssure . engineering method in an essentially free field over a reflecting plane
声学.使用声压法对噪声源声强级的测定.反射平面上基本无声波场的工程测试法 |
| 6. | Acoustics - determination of sound power levels of noise sources using sound pressure - engineering method in an essential free field over a reflecting plane iso 3744 : 1994 ; german version en iso 3744 : 1995
声学.使用声压的噪声源声音强度级的测定.在一个基本 |
| 7. | Acoustics . noise emitted by machinery and equipment . measurement of emission sound pressure levels at a work station and at other specified positions . engineering method in an essentially free field over a reflecting plane
声学.机械和设备排放的噪声.工作站和其它规定场所声压级的测量.反射平面上基本无声波场的工程测试法 |
| 8. | We also demonstrated that one corticofugai pathway is that auditory cortex sends excitatory inputs to icx and then sends inhibitory inputs to icc from icx . under free field sound stimulation conditions , we studied the sound direction effect on frequency tuning curves of inferior collicular ( ic ) neurons
本研究首次提出了听皮层调制皮层下神经元方向性性信息的概念，并发现，下丘神经元频率调谐的方向敏感性的形成中，听皮层的下行调制有重要作用。 |
| 9. | Traditional anti - seismic design method all assumes that the ground is rigid and use the displacement of the free field as input ground motion for structure . when the foundation has a huge rigidity and the superstructure has a small rigidity , the assumption is advisable in the engineering range
当基础刚度很大而上部结构刚度很小时,这种假定在工程精度范围内是合理的,但当建筑物刚度与基础刚度较为接近或相差不大时,这样的假定对上部结构反应将产生较大的误差。 |
