1、

method for eliminating the half-wave hole of short-wave passed filter

消除短波通截止滤光片半波孔的方法

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2、

Secondly, the choice of boundary material and the matching of boundary effect of the test model of deep hole bench blasting are analyzed by utilizing stress wave theory. At the same time the results of experiments were applied to the project practice.

然后利用应力波理论,讨论了深孔台阶爆破试验模型的边界材料的选择和边界效应匹配问题,同时将实验结果应用到了工程实际中去。

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3、

Combining ray tracing with algebraic reconstruction technique ( ART), ultrasonic Lamb wave tomography for through hole flaws is developed.

综合射线追踪与代数重建技术(ART),发展了横穿孔缺陷的超声兰姆波层析成像方法。

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4、

11950s: mass soldering for Through Hole Technology ( THT)& wave soldering appeared;

1950年代:通孔插装的群焊技术&波峰焊技术出现;

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5、

Ultrasonic Lamb wave tomography of through hole flaws in isotropic thin plates

各向同性薄板中横穿孔缺陷的超声兰姆波层析成像

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6、

Through hole filling is always a big challenge for wave soldering in multilayer PCB assembly, especially when encountering thick boards or components with large thermal dissipation.

钎料的通孔填充性问题一直是无铅波峰焊工艺在焊接双面板或多层板时一个很大的挑战,特别是遇到大厚板或者存在大吸热元件时填充不良现象尤为严峻。

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7、

Far field solution of SH wave scattered by interface circular hole

界面圆孔对SH波散射的远场解

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8、

The Dispersion of Circled Hole in the Whole Elastic Space by SH Wave

弹性全空间圆形孔洞对P波的散射

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9、

Spacing of different blasting holes with and without control hole for stress wave propagation and particle effects of effective stress by.

研究不同爆破孔间距组合以及控制孔对于应力波扩展和质点所受有效应力的影响。

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10、

Based on the dynamic and kinematic characteristics of stress wave and combined with working technique along with a large quantity of detection results, a diagnosis is conducted for the signs caused by rift, fissure, hole, intercalated mud, loose pile end, etc.

依据应力波的动力学和运动学特征,结合施工工艺和大量的检测结果对桩身浅部的断裂、裂缝、空洞、夹泥、桩头疏松等异常信号进行判别。

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11、

At last, researching the stress wave propagation velocity in burned-cut blasting and the process which rock throw out the hold, the author deduced to the theoretical formula of differential delay time between different breaking-in hole.

再次,研究了直线掏槽爆破中应力波传播速度和岩渣的抛出过程得出各掏槽孔之间微差爆破时间间隔的理论设计计算公式。

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12、

The destroy of the roof produced by stress wave of upward hole side blasting is less than that of the level hole blasting. The work of prizing flexible rock decreased by 58. 3%.

上向孔侧向崩矿爆炸应力波对采场项板的破坏比水平落矿爆炸应力波对采场顶板的破坏要小,从而使撬毛工作量减少了58.3%。

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13、

Using the shock wave theory, we tried to infer the propagation process of air shock wave which generated during the explosion within the blast hole.

利用冲击波理论,推测孔内导爆索爆炸产生空气冲击波的传播过程。

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14、

On the error decrement problem of wave velocity calculation in the down hole seismic method

关于检层法中波速计算误差的削减问题

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15、

The scattering energy is found to be dependent on the incident wave number and the radius of the circular hole.

并指出能量的散射与入射波波长和圆孔半径有关。

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17、

The improved unstructured quadrangular grid method is used to investigate the elastic wave propagation and dynamic stress concentration in an orthotropic strip with a central circular hole under uniform impact tension.

运用一种改进的非结构化四边形格子法,对含孔正交各向异性板条受面内冲击拉伸时弹性应力波的传播过程和孔边的动应力集中进行了研究。

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18、

XMAC works with monopole full wave mode in cased hole.

XMAC在套管井中采用单极全波测量模式.

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19、

Supersonic wave testing in drill hole without water

干孔中的(超)声波测试

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20、

The hole depth ( charge length) is one of the factors to influence the character of blast wave in rock.

炮孔深度(装药长度)是影响岩体中爆炸应力波特性的因素之一。

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