作者根据运材岔线和装车场的装车线具有临时性的特点，研制了可拆卸的汽车运材钢筋混凝土板式轨道。
According to the temporary feature of transporting branch road and decking, the author developed transporting reinforced concrete plate track that can be broken up and grouped.
单索循环轻型运材索道的钢索在每一工艺循环中，要承受静力和规则运动与不规则运动动态力的周期性作用。
The cable in the one-way cyclical light running cable-way Sustains the cyclical actions of the static force, the dynamic forces of law and non-law motions in every technological cycle.
林道工程师早就知道如何估算运材道路的建筑费用，但在道路建成之前，却无法很好地预估道路建成之后的车辆运营费。
Forest engineers have long known how to estimate construction costs of a logging road, but operating costs of log trucks can not be well quantified before the road is built.
林道工程师早就知道如何估算运材道路的建筑费用，但在道路建成之前，却无法很好地预估道路建成之后的车辆运营费。
Forest engineers have long known how to estimate construction costs of a logging road, but operating costs of log trucks can not be well quantified before the road is built.
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