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- The data acquisition system (ob-servation system, ground seismic source and borehole seismic detector) and processing methods (ray tracing proc-essing and tomography imaging) are discussed. 數據採集從震源和檢波器兩個方面優化,選用激發能量強、頻率高、成本低、效率高的震源,以及靈敏度高、抗噪能力好的檢波器;
- borehole seismic logging of rock mass 岩體地震測井
- cross borehole EM wave tomographic method 電磁波CT法
- cross borehole resistivity survey 跨孔電阻率法
- Application of Artificial Fracture Real Time Monitoring Technology with Borehole Seismic Receiver in Low Permeability Gas Well 潛入式人工裂縫實時監測技術在低滲透氣井的應用
- It is rash to cross the street without looking both ways. 不朝兩邊看看就穿馬路是莽撞的。
- Cross and angry words in family grate upon the ear. 不高興與生氣的話在一個家庭里令人不愉快。
- They are probing into the cause of the crime. 他們正在探究犯罪的原因。
- He was asking probing questions. 他提出了一些盤根究底的問題。
- A mule is a cross between a horse and an ass. 騾是馬和驢交配而生的雜種。
- The Red Cross dealt out food to hungry soldiers. 紅十字會把食物分發給飢餓的士兵。
- This cross marks the spot where she died. 這個十字元號標明她死去的地點。
- He made expiation for our sins on the cross. 他在十字架上為我們贖了罪。
- A passage made by digging or probing. 通道挖掘或探測而成的道路
- Mind out for the traffic when you cross the road. 過馬路要注意來往車輛。
- borehole seismic logging 地震測井
- Passengers mustn't cross the rails. 乘客不得橫過鐵路。
- You had better cross out the last name. 你最好把最後一個名字劃掉。
- borehole seismic observation 井下測震
- Don't be cross with the child for being late. 不要對遲到的孩子發脾氣。