The principal measure of progress is working software.

主要的进度度量标准是工作软件。

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Working in its favour is the background of the fair's three principal creators, who have established track records in running fairs and in dealing in contemporary art.

此次博览会的优势在于其三位创始人的背景，他们在举办博览会和从事当代艺术品交易方面拥有显赫资历。

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The moving characteristics and principles were found through computing. It provided the theory foundation for improving the structure and working principal of the 7NB mud pump.

通过计算找到了7NB泥浆泵的运动规律、运动特点，为进一步改进7NB泥浆泵的结构和工作性能提供了理论依据。

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Workers living outside a principal city and working in a principal city show the highest rates of long commutes, at 12.5%, the report shows.

FORBES: The Cities With The Most Extreme Commutes

After emailing Department of Education officials over the past week, calling 311 and working with the principal of the Brooklyn School of Inquiry, Ms. Gorelik found out Friday that Kevin's newly adjusted score put him in the 97th percentile.

WSJ: Testing Firm Is Under Fire Due to Errors Scoring School Exams

The IETF approval "tells the world that IPP is to be taken seriously, " says Carl-Uno Manros, chair of the IPP working group and a principal engineer with Xerox.

CNN: Technology - Engineers approve standardization of Internet Printing Protocol