1. The strange mechanical device is the prototype of modern cars.
    这奇怪的机械装置是现代汽车的原型。

2. This applies particularly to chemical industries, where chance discoveries play a much larger part than they do in physical and mechanical industries.
    在这化学工业方面尤为突出。同物理和机械工业相比，化学工业中偶然发现的机会要多得多。

3. And mechanical systems like a wound watch, or the sun, do in fact run out of energy in accordance with the second law of thermodynamics (whether the whole universe does so is a moot point at present).
    像上紧发条的手表那样的机械装置，或太阳，也都会消耗完其能量（整个宇宙否如此，目前沿有争论）。

4. "But I believe that all the answers lie in human error, mechanical problems, strange atmospheric events, or unusual magnetic phenomenon."
    "但是我相信，所有的答案都归于人为失误、机械故障、怪异的大气活动或者异常的磁场现象。"

5. I have little mechanical knowledge.
    我对机械一窍不通.