?栏杆柱
... rail of square steel 方钢轨 rail posts 栏杆柱 rail resistance 钢轨电阻,干线电阻 ...
护轨柱
钢轨位移观测桩
One fact says it all: Rail transportation posts dramatically higher energy efficiency numbers.
FORBES: With Economy Chugging Along, Rail Stocks Seen As Best Transport To Higher Gains
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。