【运输】石块截面，双轨的，铁路安全技术

section block, double-tracked

暂无补充释义。

相关词条

X-section

semithin section

standard stopping cross section【电子】

cross-section of grain【粮食】;cross-sectional area of bulk grain【粮食】;

section for gangway board and diving board

golden section method

golden section search

transition section