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- The authors first infered the boundary condition for line source, then realised the forward calculation with finite-difference method. 针对垂直有限线源，首先推导了线电流源的边界条件，利用有限差分实现了三维地电场的正演。
- By using 3-D gravity forward calculation,we obtained the deep gravity anomalies of Tai-wan from its Bouguer anomaly. Its depth corresponds to the lower crust. 经过三维重力正演计算,我们从台湾的布格重力异常中求得了深部重力异常,其深度相当于地壳下层。
- It puts forward calculation theory of forming limit of monolayer tube and multiplayer tube bulge, and fetches calculation formulae of forming limit. 本文采用成形极限理论和失稳理论对单层管及双层、三层复合管胀形成形的成形极限进行了理论研究，提出了单层管与复合管胀形破裂成形极限的计算理论，推导了极限应变及极限胀形系数的计算公式。
- Based on characteristics of air-borne gamma-ra3 spectrometer survey, the authors induced the 2D terrain correction formula, and accomplished the forward calculation. 针对航空伽马能谱测量特点，推导了基于二维地形影响系数的航空伽马能谱测量地形逐点改正的理论公式。
- Starting with AVO forward calculation, this paper gives analysis to the AVO abnormal characteristic of gas sand verified by drilling and proposes the AVO negative abnormal characteristic of shallow gas reservoirs in Yinggehai Basin. 从AVO正演计算入手;分析了已被钻井证实的含气砂岩的AVO异常特性;提出了莺歌海盆地浅部气层所具有的AVO负异常的特殊规律;探讨AVO技术在莺歌海盆地找气的应用前景.
- Based on the forward calculation of electrical potential for three-dimensional point source and two-dimensional earth with finite element method, an inversion algorithm was built with SQP method. 在对三维点电源二维地电体电位场模型有限元法正演计算的基础上，建立了基于SQP方法的高密度电阻率成像法反演算法。
- We can quickly and properly acquire the traveltime and ray path of first-break through forward calculation on the near-surface model by using linear tranveltime interpolation ray tracing. 摘要利用线性旅行时插值射线追踪对近地表模型进行正演计算，可以快捷、准确地获得初至波走时和射线路径。
- MT forward calculation in EDA anisotropy media EDA各向异性层状介质MT正演模拟
- 3-diemension forward calculation and inversion 三维重力反演
- gravimaguetic forward calculation and inversion 重磁正反演
- My foot caught in a creeper and I pitched forward. 藤蔓缠住我的脚，使我向前倒下。
- Einstein put forward his new theory of relativity. 爱因斯坦提出了相对论的新学说。
- We look forward to the return of spring. 我们期待着春天的到来。
- Many activists have come forward. 涌现了大批积极分子。
- They looked forward very much to seeing him again. 他们非常盼望再次见到他。
- He has decided to go forward with his plans. 他己决定实施自己的计划。
- She leaned forward and whispered the news to him. 她探过身去，低声把消息告诉了他。
- The sixth man went forward to feel the elephant. 第六个瞎子走上前去摸大象。
- The toy robot moved forward with quick jerky steps. 玩具机器人一颠一颠地走得很快。
- She rushed forward in contemning dangers. 她不顾危险往前冲。
