1.
Blow-out proof shaft, retained with unique Guide Bar System.
防吹出轴，保留独特的保护杆系统。
2.
Install connecting rod bolt protectors on rod bolts.
在连杆螺栓上安装连杆螺栓保护件。
3.
Study on Stress States and Supporting Effects of Bolt Body
锚杆杆体的受力状态及支护作用研究
4.
reclaimed plastics plate and rood for tree protection
再生塑料护树板和杆
5.
Study on the Support Effects of Bolt's Surface Protecting Components in Large Deformation Roadway;
大变形巷道锚杆护表构件支护效应研究
6.
Appraise on support results of the nondestructive test technology with bolt support
锚杆支护无损检测技术与支护效果评价
7.
The anchor sprayed concrete supporting application in highway side slope protection
锚杆喷射混凝土支护在公路边坡防护中的运用
8.
Promotion and Application of Combined Support with Bolt and Cable in Roadway Maintenance
锚杆锚索联合支护在护巷中的推广应用
9.
brass running nipple
下抽油杆时所用黄铜护罩
10.
Technical code for shotcrete pock bolts shore
锚杆喷射混凝土支护技术规范
11.
Leadscrew, headstock, and tool-post of all with protection system, conform to "CE" Standard.
有丝杆、车头、刀架防护装置，符合“CE”要求。
12.
A protective copper strip was hammered onto the end of the post.
标杆的顶端钉上了一块保护性铜条。
13.
door guard, fitted with chains, bars, etc., of base metal
护门器,配备链、杆等,贱金属制
14.
The dangerous trail was railed to protect tourists.
这条危险的小道围了栏杆,以保护游客。
15.
Application of prestressed rod in roadways
井巷预应力拉杆支护方式应用及探讨
16.
Discussin on Bolt and Cable Supporting Technique of the Comples Roof
复合顶板巷道锚杆锚索支护技术探讨
17.
THE EXAMPLE OF ANCHOR BOLTS STRUCTURE 1780 IN ANSHAN STEELWORKS
鞍钢1780工程基坑锚杆支护施工实践
18.
DISCUSSION ON SOME PROBLEMS IN THE EARTH ANCHOR ROD FOR DEEP FOUNDATION PIT SUPPORT
土锚杆深基坑支护中几个问题的探讨