simple pit pair

A least square solution, which is to determine the state of the three dimensional stress in the crust with the date measured by the single borehole deformation method , has been worked out.

给出根据单孔变形的实测结果计算三维地应力状态的最小二乘法，设计并通过实验系统研究了能够测量三维地应力的压磁全应力计，最后通过野外实测检验说明该应力计测量结果是可靠的。

Some new formulas of determining aquifer parameter have been derived from recovery data of steady pumping test in a single borehole by using the principle of superposition of potential function, including coeffcient of transmissibility ( T) 、 coefficient of permeability ( K )、 coeffcient of storage ( S ) and specific yield ( μ ).

将抽水试验水位恢复过程看成是抽水和等量注水两个相反过程的叠加 ,并根据势函数叠加原理 ,从理论上导出了利用单孔稳定抽水试验水位恢复资料求解含水层参数的新公式 ,包括导水系数(T)、渗透系数 (K )、贮水系数 (S)及重力给水系数 ( μ)等。

Objective lens of beam expander with a high-order curved surface can correct aberration for a deep relative aperture lens.

带有高次曲面的扩束器物镜能对大相对孔径的透镜校正像差。

This paper gives a discussion of the definition of relative aperture of photographic object glass.

本文对照相物镜相对孔径的定义、光圈数、像面照度、像面曝光量以及它们之间的关系进行了讨论。

Weld identification single hole punch.

鉴别焊缝的单孔冲压机

Frequency of the wide-band sandwich transducer with single hole in relation of the hole's size

穿单孔换能器的频率与孔尺寸间的关系研究

It was a steel bridge of a single span and there was a sentry box at each end.

那是一座单孔铁桥，两端各有一个岗亭。

Numerical Simulation of Single Orifice Gas Bubble Motion Behavior with Volume of Fluid Method

单孔气泡动力学行为的VOF数值模拟

Single Port Laparoscopic Surgery,The New Evolution of Endoscopic Surgery

单孔腹腔镜手术:内镜手术的新进展

Transumbilical single-port laparoscopic cholecystectomy

经脐单孔法腹腔镜胆囊切除术(附32例)

Experience of Single Umbilical Port Laparoscopic Cholecystectomy Applying in 46 Cases

经脐单孔腹腔镜胆囊切除46例体会

Introduction of Single Openings Compensation for Shell Header and Formed Head

筒体、集箱和成型封头单孔补强介绍

The application of suspended transumbilical single port laparoscopic surgery:with a report of 2 cases

悬吊式经脐单孔腹腔镜技术2例报告

Navigation Signal Anti-jamming Based on Single Dual-polarized Antenna

单孔径双极化天线的导航信号抗干扰

A one - way peephole in a door.

窥视孔门上单向的窥视孔

directional single-plane jet perforator

单面定向聚能弹射孔器

four jaw large hole chuck

大通孔四爪单动卡盘

INFLUENCE OF TURBULENCE INTENSITY ON COOLING EFFECTIVENESS IN BACK-DIFFUSED HOLE

湍流度对单排圆孔及后扩孔气膜冷却的影响

double-grip large bore single string packer

双卡瓦大内孔单管封隔器

Shipbuilding--Clear openings through frames for external single-Leaf doors

GB/T9910-1988船用外部单扇门门框通孔

a single-reed woodwind with a conical bore.

带有一个圆锥孔的单簧木管乐器。

INVESTIGATIONS ON MICROPOROUS STRUCTURE OF HOLLOW HARD ELASTICITY IPP(HHEIPP) MONOFILAMENTS

中空硬弹聚丙烯单丝微孔结构的研究