... cross-over designs 交叉设计 direct access to source data 直接查阅原始数据 dose- response 量效关系 ...
基于2个网页-相关网页
There is often a third category of service, the information service, which provides direct access to data contained within a (typically federated) data source.
经常还有第三类服务，信息服务，用于提供对数据源(通常为联合数据源)中包含的数据的直接访问。
Clicking the hyperlink opens the source document and gives you direct access to the targeted data.
单击超链接打开源文档，直接访问目标数据。
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