Tapping this steam would be expensive, since it would require not only extra building materials, but also more durable ones, to cope with the higher pressures and temperatures.
利用此类蒸汽可能代价不菲,因为这不仅要消耗额外的建筑材料,而且要求所用的建材更为牢固以经受更高的压力和温度。
There are also extra benefits this year from installing via STEAM.
今年通过STEAM安装还有其他的好处。
Then, if the steam grade is to be followed, extra roadway length must be gained on adjacent mountain spurs, in side canyons, or with switchbacks.
然后,如果蒸气的等级将被跟随,在旁的峡谷,或与改变角度,额外的车道长度一定在毗连的山马刺上被得到。
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