1) two-layer flow path
双层流道
1.
This paper makes a brief introduction to positioning and permeable environment forming of the ring suspension sand core,It can provide some experience on the reasonable choice of technological parameters and the dynamic quality control for the sand casting of large ZL201 alloy thin-wall worm-shell parts with two-layer flow path.
概述了全包悬空环形砂芯的定位和透气环境的形成途径；从工艺参数的合理选择和现场动态质量控制上，为ZL201合金双层流道大面积薄壁蜗壳类铸件的砂型铸造成形积累了经验。
2) double-decked tunnel
双层隧道
1.
This paper analyzes the forced state of surrounding rock and tunnel lining in every step of the construction project for Fu longping double-decked tunnel.
采用二维弹塑性有限元法,分析了在两种施工方案下伏龙坪双层隧道各个施工阶段围岩和衬砌的受力状态,考虑材料的非线性特征,采用Mohr-Coulomb屈服准则及其关联流动法则,采用切线刚度迭代法求解平衡方程,对超过屈服点的应力进行应力调整。
2.
2D elasto-plastic finite element method is adopted to analyze the forced state of the surrounding rock and the tunnel lining in every step of the construction project for Fulongping double-decked tunnel.
采用二维弹塑性有限元法,分析了在该施工方案下伏龙坪双层隧道各个施工阶段围岩和衬砌的受力状态,考虑材料的非线性特征,采用Mohr Coulomb屈服准则及其关联流动法则,采用切线刚度迭代法求解平衡方程,对超过屈服点的应力进行应力调整。
3) two layer runway
双层道面
4) double_deck roller bed
双层辊道
1.
The double_deck roller beds were thus modified to become more reliable and easier operated by incorporating multiple transmission modes into them.
530轧机原机前后辊道在生产中故障多 ,检修耗时长 ,把双层辊道改进为实用、可靠、多种传动组合的双层辊道 。
5) double decked lanes
双层车道
1.
Double decked lanes are arranged in accordance with the unique formation of the shield tunnel and the required construction limit of highway, with proposals for double decked lanes in twin tunnels using DOT shield machines of equal and unequal diameters.
针对盾构法隧道的特点 ,根据公路建筑限界的要求 ,布置了双层车道 ,还设想了采用等直径和不等直径双连DOT盾构法隧道建造双层车道的方案。
6) double-skin duct
双层管道
补充资料：道-道间寻道时间
道-道间寻道时间(single track seek)：
指磁头从一磁道移动至另一磁道的时间，单位为毫秒(ms)。
指磁头从一磁道移动至另一磁道的时间，单位为毫秒(ms)。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条