Angiogenesis is the key step in tumors proliferation and metastasis, which depends on the net balance between endogenous stimulators and inhibitors.
血管形成是实体肿瘤增殖和转移的关键步骤，这一过程依赖于内源性刺激因子和抑制因子之间的平衡。
In brief, on net balance machines, technological improvements, automation, economies and efficiency do not throw men out of work.
总之，整体而言，机器、技术改进、自动化、降低成本和提高效率并不会使人失去工作。
It is true that its reduction would help the country on net balance. But somebody would be hurt. Groups previously enjoying high protection would be hurt.
的确，降低关税对国家整体有益，但是有人会受到伤害，原先享受关税保护的群体将遭受损失。
But those who support it as a general practice fail to see that it always raises production costs; that it results on net balance in less work done and in fewer goods produced.
但是，主张将之作为一般办法加以推广的人士却没有认识到，这样做通常提高了生产成本，其最终结果就是做的工作更少，生产的商品也更少。
But those who support it as a general practice fail to see that it always raises production costs; that it results on net balance in less work done and in fewer goods produced.
但是，主张将之作为一般办法加以推广的人士却没有认识到，这样做通常提高了生产成本，其最终结果就是做的工作更少，生产的商品也更少。
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