虽然要比被替换机种的能效大得多，但是光这一点还不够。能否完成计划中的订购数需要足够的时间去证明。
Although a far more capable aircraft than those it is replacing, it may not be useful enough for long enough to justify the size of the planned order.
如果我们懂得像农民那样去填挖方、去造地形，我们的景观便能更具能效。
Following the peasant model of equal cut and fill, our landscapes would be more energy efficient and easily constructed.
针织物活性染料印花对印坯的前处理要求较高，如煮练匀透，去碱净，毛效高。
Knitted goods for reactive printing need even scouring, complete alkali removal and high capillary effect.
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