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汉语拼音：qiáo mén

桁架桥每端的头两个主要桁架之间的空间。

1. 古代太学周围环水，有四门，以桥通，故名。

   《后汉书·儒林传序》：“饗射礼毕，帝正坐自讲，诸儒执经问难於前，冠带縉绅之人，圜桥门而观听者盖亿万计。” 宋 曾巩 《贺元丰三年明堂礼毕大赦表》：“青云多士，皆预桥门之听观。”

• Machine tools - Test conditions for bridge-type milling machines - Testing of the accuracy - Part 1 : fixed bridge (portal-type) machines.

  机床.桥型铣床的试验条件.精度试验.第1部分：固定桥（门架形）机床

• Its beautiful arched bridge gate is a sign of this bridge.

  桥前一道美丽的拱形桥门，是跨海大桥的象徵。

• The Fault Analysis and Reinforcing Countermeasure of the Overhead Bridge on Sha Bridge

  沙桥门桥病害分析及加固对策

• Adjustable hydraulic brake for traveling mechanisms of overhead and gantry cranes

  桥门式起重机运行机构可操纵液压制动器

• Problems involving overhead and gantry cranes'inspection

  检验桥、门式起重机时应注意的问题

• Estimation of fatigue crack extension life for Overhead and gantry cranes

  桥门式起重机疲劳裂纹扩展寿命的模拟估算

• Measure the Deflection of Main Girder for Bridge Crane and Goliath Crane by Laser

  激光法测量桥、门式起重机主梁挠度

• Survey on downward deflection in main girders of bridge and gantry cranes in use

  对在用桥、门式起重机主梁下挠的调查与分析

• Improvement to the power supply mode of gantry crane

  桥门式起重机供电方式的改进