We mainly introduce the problem of study on additive number theory and its background and development the main result of this paper.

主要介绍了加性数论的研究问题以及它的背景和进展及本论文的研究成果。

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The containment spray system consists of two pumps, spray ring headers, a spray additive tank, a number of motor operated isolation valves and all necessary piping, instruments etc.

安全壳喷淋系统内有两台喷淋泵，喷嘴，喷淋添加箱，许多安全壳隔离阀和相关的管道仪表等。

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The total root number, the fresh root weight, the dry root weight were mainly controlled by the additive effect, and had higher stable heritabilities.

根系性状中的根鲜重、根干重、根总条数等性状的遗传以加性为主，遗传力高，能稳定遗传，其转育及早代选择有效；

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But additive manufacturing is only one of a number of breakthroughs leading to the factory of the future, and conventional production equipment is becoming smarter and more flexible, too.

ECONOMIST: A third industrial revolution | The

Additive manufacturing can also be achieved by a number of other methods, such as selective laser sintering (SLS).

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Although this deal involves a limited number of subscriber, they will be directly additive to profits by opening up additional channels for monetizing the content that Disney has already produced.

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