Supply chain management and e-business are efficient ways for construction enterprises to reduce cost of, shorten time limit for and improve quality of engineering projects.

供应链管理和电子商务是建筑企业节约成本、缩短工期、提高质量的有效方法。

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At the same time, several strategies, i. e. combining gene engineering with conventional breeding, taking improvement of maintainer line for the focal point of good-quality gene...

同时提出基因工程育种与常规育种紧密结合，优质基因工程着重改良保持系及聚合转基因等策略，以培育出超高产优质抗病虫转基因聚合杂交稻新组合。

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