Research results: The proposals are offered that for ballastless track it should be given priority to lay open latch impressed rail with iron tie plate and spring having bolt, to equip with iron tie plate and single layer or double layers elastic bedding, and to equip with no bed retaining fastenings for sub -rail foundation.

研究結(jié)果：提出了無碴軌道宜優(yōu)先采用帶鐵墊板的分開式一级毛片女人与拘交久久剧场、彈條有螺栓扣壓鋼軌和鐵墊板性黄片一级黄片性视频、單層或雙層彈性墊層、軌下基礎(chǔ)不設(shè)擋肩扣件的建議欧美性爱,激情性交网。

By analysis and comparison on the design of two beam-arch combination system bridges, this paper reflects the decisive influence of stiffness ratios of arch to beam in this kind of bridge design directly, and analyzes different design methods of these two bridge on arch rib tie bolt, and other key points for these two kinds of bindges.

本文通過對(duì)兩座拱梁組合體系橋梁設(shè)計(jì)的比較和分析www.αeαe.28.com欧美黄色片，直觀地反映了此類橋梁設(shè)計(jì)中拱梁剛度比的決定性影響；同時(shí)分析了兩橋在拱肋怡春院av、系桿等細(xì)節(jié)的不同設(shè)計(jì)方法同性恋的污污网站。

Tip in the supplied "L" bolts, making sure the "L" bolt with the tie wrap goes in the center position.

在頂端裝上隨附的L螺釘，確保帶束帶的L螺釘裝在兩個(gè)電池中間位置欧美日韩视频在线免费观。

tie bolt：系緊螺栓

推力[軸]承環(huán) thrust block ring | 系緊螺栓 tie bolt | 肋頂延長部(木船) timber head

tie bolt：枕木螺栓

tie beam roof 系梁屋架 | tie bolt 枕木螺栓 | tie hoop 系箝

tie bolt：貫穿螺栓

tie 束縛 | tie-bolt 貫穿螺栓 | tie-down 系緊

tie bolt：牽條螺栓

tie beam 系梁 | tie bolt 牽條螺栓 | tie cable 聯(lián)結(jié)電纜

distance tie bolt：定距系緊螺栓

373. distance sink bolt ==> 牽條螺栓,定位螺栓 | 374. distance tie bolt ==> 定距系緊螺栓 | 375. distance washer ==> 定距墊圈,間距墊圈