The rights and obligations of the procuring entity and the supplier respectively shall, on the principle of equality and voluntariness, be agreed on in a contract.
采购人和供应商之间的权利和义务，应当按照平等、自愿的原则以合同方式约定。
The realization principle of red and black mechanism is expounded with respect to the data model, data entity, graph version, network topology and application realization.
从数据模型、数据实体、图形版本、网络拓扑、应用实现等方面阐述了红黑图机制的实现原理。
The responsibilities of the dispatching entities shall be intensified under the principle that the entity which dispatches an overseas visiting team shall be responsible for it.
按照谁派出、谁负责的原则，强化因公出国(境)团组派出单位的责任。
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