但是他也说道路坎坷：“地球早期生命是杂乱无章的、低效的、随机的，伴随着各种废品。”
But there could be bottlenecks along the way he warns: "At the beginning of Earth making life was messy, random and inefficient, with many dead end products."
大多数产品要求纤网内纤维的排列方向随机分布，即形成杂乱状态，所得产品各方向性能差异最小，主要性能指标强度差异即纵横向强度比要小。
So, beside the uniformity requirement, the web should have more fibers of random orientation which means the difference of breaking strength in length and breadth is small.
接触网不平顺功率谱可以揭示隐含于看似杂乱无章、不规则的接触网不平顺随机波形的许多信息。
The disorderly and irregular information of random catenary irregularity waveforms are revealed by catenary irregularity power spectrum.
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