The comparison NASA and its contractors prefer is that of the postal service and commercial airlines.

宇航局及承包商更喜欢地比较的是邮政服务与商业航空。

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All four of the tools chosen for comparison are mature enough to be suitable for commercial development, and well supported enough that they will be around for some time to come.

这里选择进行比较的4种工具都足够成熟，均适用于商业开发，并且会在将来的某个时候获得成功。

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On a SCR denitration test rig, tested was the performance of the catalyst under various conditions and conducted was a comparison with commercial catalysts having a similar structure.

在SCR脱硝试验装置上测试各种条件下催化剂的性能，并与结构类似的商业催化剂进行对比。

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By comparison, commercial bank Wells Fargo's reserve is 1.85%.

FORBES: Market Scan

Using reconciliation software from a commercial vendor, it is building a comparison engine to run its quality control business.

FORBES: Major Hedge Fund Will Run Two Sets Of Books

The comparison is obvious: BlackBerry's already-infamous "Can't Do" commercial in this year's Super Bowl vs.

ENGADGET: Editorial: BlackBerry slumps into history of Super Bowl tech ads