Can technology deliver a solution that totally eliminates waste from the physical book supply chain?
那么技术创新可以找到一种从纸质图书供应链中消除浪费的解决办法吗？
I.-The physical existence of a supply of gold somewhere in the world.
—世界上实际存在大量的黄金。
Physical therapists are in short supply, too, and therapy can be hugely labor-intensive.
而现在理疗师短缺，并且康复治疗的劳动强度相当大。
From a human standpoint, all of the world's physical resources are in finite supply.
在人类看来，所有的自然资源都是有限的。
Power supply and load must be directly between the physical connections.
电源与负载之间必须要有直接的物理连接。
Power supply and load must be directly between the physical connections.
电源与负载之间必须要有直接的物理连接。
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