The inner solution is obtained by the source distribution method.
用源分布法，求得了内部解。
The marketing and distribution mechanism is the inner drive of Special demand medical treatment services.
市场营销机制是特需医疗服务的内在动力。
The marketing and distribution mechanism is the inner drive of Special demand medical treatment services.
市场营销机制是特需医疗服务的内在动力。
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