英语词汇depth of ballast怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	depth of ballast
释义	depth of ballast 简明释义道碴厚度网络释义 1 ?道床厚度 ... 底碴subballast 道床厚度thickness of ballast bed;depth of ballast 道床宽度width of ballast bed ... 2 ?道碴厚度 ... depression at joint 接头沈陷 depth of ballast 道碴厚度 depth of rail 钢轨高度 ... 短语 1 depth of which ballast screened 清筛道碴之深度双语例句 1 The thesis presents a design program of the quick-start controller with electronic ballast, and the more in-depth theoretical analysis is finished. 本文提出了一种采用电子镇流器的快启控制器的设计方案，并进行了较为深入的理论分析。 2 Study on in-depth treatment of dirty ballast water from oil tankers by ozone oxidation; 臭氧氧化作为一种有效的深度处理技术，对难降解有机废水具有良好的降解功效。
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