Key-bolt的意思|示意

International standard five-bolt structure: With the prying-resistant trigger bolt and indoor locking dead bolt for security and the mechanical key for emergency access;

国际标准五锁舌结构：有防撬保险舌和室内反锁大方舌，具机械钥匙应急开门；

Connecting bolts are arranged in the plugging conical points, and an anti-rotation key and an outer six-square sleeve which can realize the linkage are arranged on the screw bolt.

封堵内置有连接螺栓，螺栓上设有防转键及实现连动的外六方套。

A concept is provided that the supporting construction of rock bolt system consists of key, secondary reinforcement and quasi-plastic supporting structures. And their interactions are analyzed.

提出了岩体锚固的承载结构体系由关键承载结构、次生加固承载结构和准塑性承载结构组成的概念，并分析了三者之间的相互作用关系。

Cold upset female die of fillister head is the key mold in the manufacturing process of heading bolt.

冷镦圆头凹模是冷镦螺栓生产过程中的关键模具。

Moreover, the characteristics and key points in construction of tubular rock bolt are presented in this paper.

此外，文章还对管式锚杆的特点及施工要点进行了分析和论述。

It expounds that the key of solving thermal transient sealing problem is to obtain the thermal increment of stud-bolt loading.

阐明了热瞬态密封问题求解的关键是给出螺栓载荷的热态增量；