keystone

英 [ˈkiːstəʊn]

美 [ˈkiːstoʊn]

n.  拱顶石; (计划、论据的)主旨，基础

复数：keystones　

IELTS

BNC.21380 / COCA.17516

牛津词典

noun

• 拱顶石
  the central stone at the top of an arch that keeps all the other stones in position
• （计划、论据的）主旨，基础
  the most important part of a plan or argument that the other parts depend on

柯林斯词典

• 拱顶石
  Akeystoneis a stone at the top of an arch, which keeps the other stones in place by its weight and position.
• N-COUNT （政策、体系或进程的）基础，主旨
  Akeystone ofa policy, system, or process is an important part of it, which is the basis for later developments.
  1. Keeping inflation low is the keystone of their economic policy.
     将通货膨胀率保持在较低水平是他们经济政策的主旨。

英英释义

noun

• the central building block at the top of an arch or vault
  Synonym:keyheadstone
• a central cohesive source of support and stability
  1. faith is his anchor
  2. the keystone of campaign reform was the ban on soft money
  3. he is the linchpin of this firm
  Synonym:anchormainstaybackbonelinchpinlynchpin

双语例句

• It can obtain these parameters from Keystone, as well.
  也可以从Keystone中获得这些参数。
• Based on it, compared with overseas researchful status of MICE tourism, the paper further discusses the intending researchful keystone and direction of MICE tourism.
  在此基础上，对比国外会展旅游研究状况，进而探讨了会展旅游未来的研究重点和方向。
• In this paper, the general situation of mountain ecosystem was briefly introduced and the effects of keystone populations on the degraded ecosystem were discussed.
  简要介绍了岷江上游山地生态系统的概况，讨论了关键种群在退化生态系统研究中的作用和意义。
• By this problem of the counteracted system, the keystone on jamming counteraction is analyzed and the primary factors which affect the counteracted capability are discussed.
  针对对消系统面临的这一问题，分析了干扰对消的基本原理，并对影响对消性能的主要因素进行了深入探讨。
• Keystone is to study the maneuverability and how to cut out the management technology to reduced cost, achieve the management targets of project in the middle and small software development enterprise.
  重点研究可操作性和管理技术如何裁剪使管理成本降低，达到中小软件开发企业项目管理目标。
• Each Keystone function supports back-end plug-ins for integration into heterogeneous environments and to expose diverse functionality.
  每个Keystone功能都支持用于集成到异构环境并展示不同功能的后端插件。
• Currently, revitalizing the commerce railway system has been included in the program of'urban rebirth'as a keystone.
  目前，重振铁路商业已列入“都市再生”计划，并作为一个重点。
• It takes the moral selection as a core and the innovative ability& the development of practical ability as a keystone.
  选择教育以道德选择为核心，以创新精神和实践能力的培养为重点，而人的全面和谐发展是选择教育的最根本理念。
• Keeping inflation low is the keystone of their economic policy.
  将通货膨胀率保持在较低水平是他们经济政策的主旨。
• Nowadays, biosorbents become the hotspot and keystone of the researches on treating heavy metals and POPs.
  目前，生物吸附剂已成为处理重金属和持久性有机污染物研究的热点和重点。