The operation for hauling bulk ballast will need two access points along a segment at approximately2.5mile intervals.
搬运大批的道碴需要沿一个区段的两个进入点，间隔距离约为2。5英里。
The operation for hauling bulk ballast will need two access points along a segment at approximately2.5mile intervals.
搬运大批的道碴需要沿一个区段的两个进入点，间隔距离约为2。5英里。
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