spur line of level 中文意思是什麼
spur line of level
解釋
支線水準線-
By the time the spur line is able to come down from an elevated structure to ground level, the railway has already cleared long valley. " moreover, construction of a 2 - metre high wall on both sides of the tracks to protect the railway tunnel from flooding risk in this low - lying area would become a big visual intrusion
此外, ?原是一個低洼地帶,如果在該處興建隧道,必須在隧道兩旁加建兩米高的基堤,以確保隧道不受水浸影響,然而,這會對景觀造成更大影響。
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