很难估算，火车从达累斯萨拉姆开出以来已经增加了多少重量。或者说，是不是每节车厢都像我们车厢一样，已经变得和食品超市一样了。
It was hard to imagine how much added weight the train had taken on since we left Dar es Salaam, or whether each of the cabins had begun, like ours, to resemble the produce section of Whole Foods.
以散货船和油船为实例的计算结果表明，由非线性模拟神经元组成的神经网络在船体重量估算中是非常有效的。
It is shown by the computational results for bulk carriers and tankers that massively parallel, interconnected networks of nonlinear analog neurons are most effective in the hull weight estimation.
本文对直升机单发编队飞行执行某任务的基本条件，不同重量时单发飞行的飞行速度范围，特定重量的性能估算进行了简单的分析。
This paper simply analysed basic conditions and velocity range in various weights of helicopter formation flight in single engine operative and performance prediction in specific weight.
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