1.
Gun Barrel Inner Diameter Measuring System Based on Optical Lever
基于光杠杆的火炮身管内径测量系统
2.
Research on pipe robot based on artillery barrel measurement
基于火炮身管内径自动检测机器人的研究
3.
Inside Diameter I.D
内直径（俗名管内径）
4.
The interior diameter of a hole, tube, or cylinder.
内径洞、管或圆柱体的内径
5.
The tube is ten feet wide in the clear.
这管子内径宽十英尺。
6.
reducing extension piece
异径内外螺纹管接头
7.
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
8.
TUBE DIAMETER SHALL BE WITHIN 10% OF NOMINAL DIAMETER WITHIN BEND RADIUS.
管直径须在直径理论值和折弯半径的10%以内。
9.
Hollow tube-shaped organ in the body
（身体内的）管状器官
10.
Application of fitness path and research in its service and management for university women students;
女大学生健身路径的使用与服务管理
11.
Impact of changing parameters of expanding section on gas-solid flow characters in a changing-diameter riser
扩径段参数对变径提升管内气固流动的影响
12.
Research on the Application of Track and Field Content in Community Sports;
田径健身内容在社区体育中运用的研究
13.
The Endogenetic Route for Rural Migrant Workers to Transform Status Progressively
农村进城务工者身份渐变的内生型路径
14.
Research on Biological Pollution of Air Quality and Route Fitness Equipment of Indoor Gymnasium;
室内健身场所空气质量及路径健身器械生物性污染的调查与研究
15.
a tube with a very small internal diameter.
一根内径十分细小的管子.
16.
On the Ways to Realization of Rule by Law in the Internal Management of Chinese Colleges and Universities;
我国高校内部管理法治化的路径思考
17.
Experiment on Gas Explosion and Restricted Explosion in φ700mm Pipeline
直径700mm管道内瓦斯爆炸及抑爆试验
18.
Study on bearing capacity test of internal water pressure of super-caliber PCCP
超大口径PCCP管内水压承载能力试验