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- These events were referred to as ground roll. 那些同相轴称为地滚波。
- 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。
- 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。
- 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。
- 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。
- 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。
- Cyclic variation of integrated back scatter, CVIB 心动周期心肌背向散射变化幅度
- 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。
- Portable gamma back scatter thickness meter 携带式反散射厚度计
- back scatter electron technology 背散射电子技术
- Ultrasound integrated back scatter 超声背向散射积分
- back scattered electron detector 反散射电子检测器
- Company Profile: It is a newly built Italian enterprise that works on researching, processing, manufacturing and selling for ground belt,ground roll,ground wheel and other ground products. 公司是研发加工、制造、销售研磨带、研磨卷、研磨轮等研磨制品的新建意大利独资企业。
- Let's roll back the carpets and have a dance. 咱们把地毯卷起来跳舞吧。
- The principle of Laser Doppler Velocity (LDV) and the method of back scattering are presented. 介绍了激光多普勒测量技术的原理和后散射型固体表面测量方式。
- Four respects including roll selection, grinder situation, technique and inspection are controlled to ensure to grind roll accord with the rolling demand on O5 plate. 从轧辊挑选、磨床状态、工艺方法、检查等四个方面进行控制,确保了磨出符合O5板轧制要求的轧辊。
- Rose bushes shoot again after being cut back. 玫瑰丛修剪後还能再长出新枝。
- Nobody can roll back the wheel of history. 没有人能够倒转历史的车轮。
- 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。
- AD603, a variable-gain amplifier, is used in the pre-amplifier circuit for restraining the back scattering and amplifying the laser signal of target. 信号前端放大电路采用AD603可变增益放大器,用于抑制水体后向散射并放大激光回波信号;