jet block

A new method based on well logging data and pre-stack seismic inversion parameters,which is called pore bulk modulus method, is presented to quantitatively calculate pore fluid saturation.

提出了一种基于测井数据和叠前地震反演参数的流体饱和度定量预测方法——孔隙体积模量法。

Dynamic response of soil is studied by considering the spatial variation of porosity,permeability coefficient and bulk modulus of pore water,which are referred to as the hydrogeotechnical properties.

结果发现,由于散射及固有频率明显降低(它表明土实际上已软化)而引起的衰减中,孔隙率和孔隙水的体积模量的空间变异性将产生很重要的影响。

diameter and number of hole

喷嘴量孔孔径及数目

square-edged orifice

直角铣孔流量计孔板

Research on Quality of Drilled Holes for Cast-in-Place Piles in Shanghai District;

上海地区钻孔灌注桩成孔质量的研究

Small amount of a drug that is sniffed

（用鼻孔吸入的）少量毒品

borehole content analyzer

钻孔矿物含量分析仪

orifice well tester

孔板式天然气流量计

digital display measuring instrument for motor mounting hole

电机底脚孔数显测量仪

bellows-type gas or orifice meter

伸缩式气体孔板流量计

Rising temperature of casting solution will increase the water flux, porosity and average pore size of PVDF membrane.

制膜液温度升高，得到微孔膜的孔隙率、通量及平均孔径都增大。

Instantaneous Clearance of Ordinary Punching and Precise Punching Without Burr and Its Influence on Punching Quality

普通冲孔与无飞边精密冲孔的瞬时间隙及对冲孔质量的影响

Post pressure grouting of borehole cast-in-situ pile bottom and its quality control

钻孔灌注桩孔底后压浆施工工艺及质量控制

Study on Slender Hole Ultra-precision Measuring System and Precision Analysis;

细长小孔孔径精密测量系统的设计及精度分析

Quality Questions Study of Diesel Engine Cylinder Block Bore and Cylinder Bore Machining;

柴油机机体缸孔及缸套孔加工质量问题探讨

Research on high-precision capacitive automatic measuring system for pinhole diameter

高精度电容式小孔孔径自动测量系统的研究

Pile-forming Construction Quality Control of Bored Pile of Highway Brige

公路桥梁钻孔灌注桩成孔施工的质量控制

On the quality problems in drilling

浅谈如何防治钻孔灌注桩钻孔施工时质量通病

cumulative injection in pore volumes

以孔隙体积计量的累计注入量

STUDY ON MEASUREMENT METHOD OF SMALL ORIFICE CONDUCTANCE USING GAS MICRO-FLOWMETER

气体微流量计测量小孔流导方法研究