The cleaner production is a necessary choice of the coal chemistry enterprise.

清洁生产是煤化工企业发展壮大的必然选择。

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Distinctive database is the necessary choice with the cyberization and digitization in library.

特色数据库是图书馆网络化数字化的必然选择。

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The cyclic economy is the necessary choice for iron and steel industry that is based on resources.

做为资源型行业的钢铁行业，走循环经济之路，更是必然的选择。

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Reviewers found the choice of processors somewhat necessary considering the tight spaces, but the sluggish performance within Vista was irritating to say the least.

ENGADGET: Fujitsu's LifeBook S2210 and P7230 laptops reviewed

"With Mitt Romney losing ground to President Obama in the polls, I don't see the selection of Paul Ryan as 'risky, ' I see the choice as bold and necessary, " Republican consultant Ford O'Connell told CNN.

CNN: August 13, 2012 -- Updated 0242 GMT (1042 HKT)

"With Mitt Romney losing ground to President Obama in the polls, I don't see the selection of Paul Ryan as 'risky, ' I see the choice as bold and necessary, " O'Connell wrote in an email to CNN.

CNN: Analysis: A bold but risky choice for running mate