wooden rails 中文意思是什麼
-
The rails of the two tracks are supported on wooden ties resting on a ballast.
兩條線路的鋼軌放置在有道碴承托的枕木上。 -
Rail fastenings in mining for s 30 and s 33 rails on wooden sleepers
鋪設在木質軌枕上的s30和s33鋼軌用礦區鋼軌固定件
分享友人