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- These events were referred to as ground roll. 那些同相軸稱(chēng)為地滾波。
- In the jargon, they are all embraced by the term "ground roll". 在俗語(yǔ)中,可以統稱(chēng)之為“地滾”波。
- Ground roll wave has characteristics of strong energy, low frequency and slow attenuation. 摘要面波具有能量強、頻率低、吸收衰減緩慢等特點(diǎn)。
- The surface disturbance is termed ground roll and may include Rayleigh and other vertical and horizontal modes of propagation. 地面擾動(dòng)稱(chēng)為地滾波,它可能包含瑞雷波和其它縱、橫形式的波動(dòng)。
- 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. 采用窄檔等頻距小波變換方法,在含面波的低頻頻帶內,用平均能量法識別和壓制面波,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,利用石油地震勘探記錄中的瑞雷面波來(lái)調查表層結構是可行的,它具有中等尺度的探測能力。
- Cyclic variation of integrated back scatter, CVIB 心動(dòng)周期心肌背向散射變化幅度
- 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. 檢波器組合能夠壓制面波及隨機干擾,提高信噪比,但也會(huì )產(chǎn)生較強的低頻響應,從而降低分辨率。
- Portable gamma back scatter thickness meter 攜帶式反散射厚度計
- back scatter electron technology 背散射電子技術(shù)
- Ultrasound integrated back scatter 超聲背向散射積分
- back scattered electron detector 反散射電子檢測器
- 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. 公司是研發(fā)加工、制造、銷(xiāo)售研磨帶、研磨卷、研磨輪等研磨制品的新建意大利獨資企業(yè)。
- Let's roll back the carpets and have a dance. 咱們把地毯卷起來(lái)跳舞吧。
- The principle of Laser Doppler Velocity (LDV) and the method of back scattering are presented. 介紹了激光多普勒測量技術(shù)的原理和后散射型固體表面測量方式。
- 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. 從軋輥挑選、磨床狀態(tài)、工藝方法、檢查等四個(gè)方面進(jìn)行控制,確保了磨出符合O5板軋制要求的軋輥。
- Rose bushes shoot again after being cut back. 玫瑰叢修剪後還能再長(cháng)出新枝。
- Nobody can roll back the wheel of history. 沒(méi)有人能夠倒轉歷史的車(chē)輪。
- Antiabrasive built - up welding repair of high pressure grinding roll surface in cement plant. 水泥廠(chǎng)輥壓機輥面的耐磨堆焊修復。
- AD603, a variable-gain amplifier, is used in the pre-amplifier circuit for restraining the back scattering and amplifying the laser signal of target. 信號前端放大電路采用AD603可變增益放大器,用于抑制水體后向散射并放大激光回波信號;