能量供应和带宽的限制成为制约移动设备的基本因素。
The fundamental constraint for mobile devices is limitations because of energy supply and bandwidth.
如果这一做法持续下去，水资源不久后将会成为粮食生产的一大制约因素，而粮食生产是一些国家普通大众基本口粮的来源。
If this practice continues, water will soon become a limiting factor for food production as a basic staple for the general public in some countries.
但这并不意味着它不会像地球上其他地方一样受到基本经济规律的制约。
But that doesn't mean it isn't subject to the basic economic laws of the rest of our planet.
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