Application neutrality should be the principal goal of an interface, because it is precisely this characteristic that enables shareability (a fundamental SOA principle).
And the main characteristic of modern corporate is the separation of ownership and management power, appearing principal-agent relationship.
现代公司主要的特征是所有权与经营权相分离，产生了委托———代理关系。
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The work principal? Structure characteristic and usage of ZX28 series stainless steel resistor are introduced, and some hope and suggestion on design development of new type resistors are gived.