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

• One additional service of Keystone is the service catalog used for end point discovery.
  Keystone的一个附加服务是用于端点发现的服务目录。
• 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。
• 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。
• 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。
• 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。
• One of keystone's primary functions is to serve as a service catalog.
  keystone的主要功能之一就是充当服务目录。
• We recognize that keystone has been caught up in political gridlock in this country.
  我们知道Keystone项目已在美国陷入了政治僵局。
• Our product is combined Chinese's religion keystone and modern technologies.
  本产品是依据中国宗教的原理与现代科技研发而成。
• Japan's co-operation was the keystone in developing the regional agreement.
  日本的合作是发展地区和睦的基础。
• As the classic adjacent exits and entrances, weaving areas are the keystone and difficulty of traffic study.
  交织区作为典型的相邻出入口，是交通领域研究的重点和难点。