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- high velocity ground roll 高速地滚波
- These events were referred to as ground roll. 那些同相轴称为地滚波。
- Air, gas or steam enters the separator at high velocity. 空气,气体或蒸汽以很高的速度进入分离器。
- In the jargon, they are all embraced by the term "ground roll". 在俗语中,可以统称之为“地滚”波。
- A centrifuge is a device for whirling an object with a high velocity. 离心机是使物体作高速旋转的装置。
- Also, the valves may be damaged by the high velocity across the seats. 此外,通过阀座的高流量还可能损坏阀门。
- At some higher velocity individual grains will roll and slide intermittently along the bed. 在稍高一些的流速时,个别的颗粒沿着河床间歇地滚动和滑动。
- Ground roll wave has characteristics of strong energy, low frequency and slow attenuation. 摘要面波具有能量强、频率低、吸收衰减缓慢等特点。
- Within the nozzle, the stationary air is sheared by the high velocity air causing turbulence which creates noise. 在喷嘴内,高速空气会穿过静止的空气,引起湍流而产生噪音。
- Develop for use on ventilation, high velocity, and high or medium pressure air conditioning systems. 开发用于通风、高速及高压或中等压力空气调节系统。
- Antiabrasive built - up welding repair of high pressure grinding roll surface in cement plant. 水泥厂辊压机辊面的耐磨堆焊修复。
- A more difficult problem is the quantitative description of the secondary breakup of the initial spray by high velocity combustion gas. 一个更困难的问题是关于高速燃气使初始喷雾二次破裂的定量描述。
- The surface disturbance is termed ground roll and may include Rayleigh and other vertical and horizontal modes of propagation. 地面扰动称为地滚波,它可能包含瑞雷波和其它纵、横形式的波动。
- This method has the characteristics of generality, less calculation, high velocity, high efficiency and etc. 该方法具有普遍性、计算量小,速度快,执行效率高等特点。
- By using band and equal distance wavelet transform and average energy method, the ground roll wave can be recognized and suppressed belier, hence obtaining good results. 采用窄档等频距小波变换方法,在含面波的低频频带内,用平均能量法识别和压制面波,取得良好效果。
- Wide-angle reflection and refraction seismic has been success fully used to image zones beneath high velocity layer. 摘要广角地震可以实现对高速屏蔽层下模糊区的地震成像。
- Therefore, it is feasible to survey surface structure by using the Rayleigh ground roll waves with moderate detectability. 因此,利用石油地震勘探记录中的瑞雷面波来调查表层结构是可行的,它具有中等尺度的探测能力。
- The APU exhaust conducts the engine exhaust gas overboard and reduces the noise level of the high velocity gas flow. APU排放口引导发动机排出气体到外面并降低高速气流的噪音。
- Turbulence factoris more important parameter for study non-Darcy flow with high velocity. 研究高速非达西渗流,最重要的是确定紊流系数。
- Geophone array can depress ground roll and random noise in order to improve S-N ratio, however it can also bring stronger low-frequency response so as to reduce resolution. 检波器组合能够压制面波及随机干扰,提高信噪比,但也会产生较强的低频响应,从而降低分辨率。