1)  angular correlation
方向角关联
2)  DCO
方向角关联
3)  trend
方向
1.
Development trend of Yunnan province's sulphuric acid and phosphorous fertilizer industries;
云南省硫酸磷肥工业的发展方向
2.
Current papermaking equipment research and its developmental trend;
当前造纸设备研究与发展方向
3.
This article has reviewed the development and application of corrosion protective coatings at home and abroad and indicated the development trend.
概述了国内外高性能防腐涂料主要品种的开发和应用情况,并提出了高性能防腐涂料的发展方向。
4)  orientation
方向
1.
Problems and orientation of fertilizer management in Guangdong;
广东省肥料管理的问题与方向
2.
The Identification, Rule and Orientation of Modification of the Agriculture Structure;
农业结构调整的特点、原则和方向
5)  directions
方向
1.
The main existed problems at present of the industry are pointed out, and the development directions of the national polycarboxylicates water-reducing admixture industry are discussed.
从我国聚羧酸系减水剂工业的研究、生产、销售和应用等方面分析了其发展现状,指出了目前发展存在的主要问题,并探讨了聚羧酸系减水剂工业发展方向。
2.
This article introduces the airflow mill's principle, development history, types, functions, application range,main national manufactories,national and international development directions,explains the ways to reduce the airflow mill's energy consumes and increase its efficiency.
介绍了气流粉碎的原理、发展历史、主要机型及其性能、应用范围和国内主要生产企业的产品,以及降低能耗、提高效率的途径与国内外发展方向。
3.
This paper comments on the tourism resources firstly, then puts an emphasis on the goals of sustainable development, and lastly, puts forward the principles of tourism developing and the directions of its tourism development.
本文首先对安顺屯堡文化旅游资源进行述评,指出屯堡文化旅游可持续发展的目标,并在此基础上进一步提出了屯堡文化旅游开发原则和方向。
6)  tendency
方向
1.
Study on Current Status and Development Tendency of Greening in Forest Industry System of Heilongjiang Province;
黑龙江省森工绿化现状及近期发展方向浅析
2.
Research Advancement and Development Tendency of New Variety Breeding for Sweet Potato with Good Quality and Specified Usage;
优质专用甘薯新品种研究进展及发展方向
3.
The establishment of an optimized process flow for new generation iron and steel production as well as the tendency and the targets of technological innovation are put forward.
论述了钢铁工业与技术创新的关系,提出了我国新一代钢铁制造流程的优化问题,指明了钢铁工业技术创新的方向和目标,并强调要用新型工业化道路的思维应对21世纪我国钢铁工业的挑战。
参考词条
补充资料:方向角关联
分子式:
CAS号:

性质:又称方向角关联。处于激发态的原子核有时通过连续发射几个粒子跃迁到基态。如果一个核连续发射两个粒子(如接连发射两个光子),这两个粒子之间的夹角θ一般不呈随机分布。换言之,接连发射两个粒子的概率P,与这两个粒子发射方向的夹角有关,即P=W(θ)。这种现象称为角关联。角关联的本质在于极化原子核发射粒子的概率各向不同性。将实验测得的角关联曲线和理论算得的角关联函数进行比较,可以获得有关核能级和核辐射性质的知识。

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