二级公路是指路面宽在7到9米，路基宽在10到12米的公路。
二级公路 Secondary roads ; secondary highway ; Second-class highway ; b road, secondary road
二级旁路系统 two-stage by-pass system
二级蒸汽旁路 second stage steam bypass
二级通路 MWRC
二级防护电路 secondary ESD Protection
二级管储荷电路 diode accumulator circuit
二级分压线路 second class voltage division circuit
第二段高级套路 Advance Routine
因此，基于女性市民的建议，对项目做了调整，增加了修建二级路、改善人行道、安装结实的街边长椅等内容。
Based on consultations with women, the project made adjustments in its design to build more secondary roads, improve pavements and install more stable benches.
具备条件的县城通二级及以上公路，乡镇和建制村通硬化路、通客车。
Where conditions permit, county seats shall have access to highways of Grade II and above, and townships and administrative villages have tarmac or cement roads and complete access to bus services.
结合二级公路旧路路面改建工程，对其改建后所带来的交通安全问题作分析与讨论。
In the light of reconstruction of pavement of second-class highway, the paper analyzes the problems in traffic safety, which were brought by reconstructed project.
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