1.
Study on technology of detecting deep underground pipelines with small diameter based on the attitude measurement
基于姿态测量的深埋小口径地下管道探测技术研究
2.
Do not reduce the size of the drain line from the air gap fitting.
不要缩小从气隙接出的拍下管道的口径。
3.
To determine the caliber of(a tube).
确定（管道的）口径
4.
"The discharge line must be the same size as the valve outlet, and must pitch downward from the valve to a safe place for disposal."
排泄管道必须与安全阀出口具有相同的口径,必须从安全阀的下方接到安全排放地点。
5.
Research and Application of 3 PE Coating Technology on Small Diameter Pipelines
小口径管道三层PE包覆技术研究与应用
6.
The small-bore pipe connecting the tanks effectively increases the inertia of the system and slow down the period.
连接两容器的小口径管道有效地增加了系统的惯量，从而延长了系统的周期。
7.
Investigation into Minimum Distance Between Intersection and Passageway of Underground Roads
地下道路地面出入口与交叉口最小间距的研究
8.
Using the GPR to Detect the Diameters of the Non-Metallic Water Pipes
地质雷达探测地下非金属给水管的管径大小
9.
In Vivo Construction of Small-Caliber Blood Vessels by Small Intestinal Submucosa Conduits and Bone Marrow Cells;
小肠粘膜下层管复合骨髓基质细胞体内构建小口径血管
10.
The diameter of the inside of a round cylinder, such as a tube.
口径圆柱体内侧圆的直径，如管道
11.
Subject of an Ultrasonic Detecting System to Wall Thickness of Large-diameter Underground Gas Pipe;
大口径埋地管道超声波在线管壁测厚系统的研究
12.
Construction of biologic small-caliber vascular prostheses using modified small intestinal submucosa
改性小肠黏膜下层组织构建仿生小口径人造血管
13.
EXPERIMENTAL RESEARCH ON DESTRUCTIVE EFFECTS OF OUTSIDE CONTACT BLASTING ON LARGE DIAMETER STEEL PIPE
外接触爆炸作用下大口径金属管道破坏效应实验研究
14.
Design of Adapter Pipe for Large-Diameter Pipeline
冶金行业大口径管道接管设计与分析
15.
Two or more smaller size valves can be piped in parallel (when approved) to serve a large supply pipe main.
两个以上的小通径阀门可以以并联方式（经过批准）安装，以服务于较大口径的供应主管道。
16.
Combined Application of Small Diameter Steel Tube Pile and Consolidation Grouting in Karst Ground Treatment
小口径钢管桩与固结灌浆技术联合应用于岩溶地基处理
17.
Welding construction technology for installation of large diameter gas pipeline
大口径天然气管道安装焊接施工技术
18.
Method and installation technology of large diameter PCCPs
大口径PCCP管道安装工艺与方法