keystone

音標發(fā)音

Therefore, XForms can become the keystone of a highly productive declarative and XML-centric development environment.
因此，XForms 可能成為高生產(chǎn)率的聲明性的、以 XML 為中心的開發(fā)環(huán)境的基礎。
The company promised reductions in rates of more than 20 percent, but after submitting our employees’ personal data, the rates turned out to be almost identical to what we were paying Keystone.
這個公司所承諾的是降低至少20%的費用，但是在提交每名員工的個人資料以后，結果相比于我們所支付的“凱斯通”費用基本相同。
Vogels (2003) claimed that the "XML document is the Web service's keystone because it contains all the application-specific information that a service consumer sends to the service for processing."
Vogels (2003) 聲稱 XML 文檔是 Web 服務的基礎，因為它包含服務客戶發(fā)送給服務處理的所有特定于應用程序的信息。

Just as a keystone holds together a stone arch, Pennsylvania was seen as holding together the young American republic.
The proposed Keystone XL pipeline would carry heavier crude oil produced from tar sands in Canada.
Pennsylvania's nickname is the Keystone State.

Thor's back-office organization has helped Keystone boost its once-struggling quality and service operation and spare-parts distribution.
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(STONE) the middle stone in the top of an arch that has a special shape and holds all the other stones in position
(IMPORTANT PART) the most important part of a plan, idea, etc. on which everything else depends

A keystone of a policy, system, or process is an important part of it, which is the basis for later developments.
A keystone is a stone at the top of an arch, which keeps the other stones in place by its weight and position.