keystones

英 [ˈkiːstəʊnz]

美 [ˈkiˌstoʊnz]

n.  拱顶石; (计划、论据的)主旨，基础
keystone的复数

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。

双语例句

• As the keystones of this paper, the integration of the one-dimensional and two-dimensional stable water quality model with GIS, the dynamic water environment capacity calculation and the water environment quality evaluation are discussed in detail.
  着重探讨了一维、二维稳态水质模型与GIS的集成研究、动态水环境容量计算和水环境质量评价。
• The environmental appraisal of construction projects has two system and environment management have two keystones in our country for a long time.
  长期以来，我国对建设项目实行环境影响评价和三同时两项制度，建设项目环境管理工作有环保审批和竣工验收两个重点。
• The rapid development of China economy raises higher requirements and challenges on the demanding of financing concerning railway construction and railway transportation equipment. Therefore, the promotion of railway investment and financing reform becomes one of the keystones for China Railways.
  我国经济的快速发展对铁路建设和铁路运输装备的融资需求提出了更高的要求和挑战，推进铁路投融资体制改革成为我国铁路的一项重点任务。
• In the face of this change, the agricultural mechanization, which is closed to the development of agricultural product and economy, should change its direction, service fields and keystones in work.
  作为与农业生产和农村经济发展密不可分的农业机械化，面对农业结构的战略性调整、农产品市场的逐步扩大开放和全球经济一体化的挑战，必须及时调整自己的发展方向、服务领域和工作重点。
• The purpose of evaluating environmental management risk is to confirm the keystones of auditing. This paper discusses countermeasure, which includes collectivity auditing strategies and material auditing contents.
  评估环境管理风险是为了确定审计的重点，文章从总体审计策略和具体审计内容两个方面探讨了审计人员针对环境管理风险采取的应对措施。
• The mensuration and calculation of transpiration and evaporation of plants are now the keystones in plant physiology.
  植物的蒸腾与蒸发（蒸散）速率的测定和计算方法是目前植物生理生态学的研究重点，但目前的常规方法，都无法区分蒸腾与蒸发。
• When you go to bed and when you get up are keystones to restful, refreshing sleep.
  何时睡觉和何时起床是获得使人休息充分、精神焕发的睡眠的关键。
• The keystones and difficulties for every chapter are proposed, and the testing system is constructed in the courseware.
  此课件总结了各章的重点内容和难点内容，并建立了自测系统，为学生学习和掌握本门课程提供了较好的条件。
• In this text, I attempt to find out the keystones of the operational management of multinational and then make some analysis about them, in order that these can have use for reference to the operational management of multinational.
  本文尝试找出跨国公司的运营管理的重点，并对这些重点进行分析，使之对跨国公司的经营管理有借鉴作用。
• The research of unsaturated soil will be one of the keystones in geotechnical engineering range in twenty-first century.
  非饱和土的研究将是二十一世纪岩土界研究的重点之一。