The heptane compound has a primary purpose as a plasticizer for double base propellant systems.

化合物庚烷的主要用途是作为双基推进剂的增塑剂。

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This is a comment with 58 references on the plateau combustion mechanism of the double base propellants.

这是一篇关于双基推进剂平台燃烧机理的评论，参考文献58篇。

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The effect of carbon black on burning properties of modified nitramine double base propellant was detailed in this paper.

分析了在硝胺改性双基推进剂中炭黑对其燃烧性能的影响。

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The DNA molecule here has been spread apart, opening up two single stranded DNA's which have complementary base sequences because they were double stranded DNA.

这里DNA分子被分开,形成两条单链DNA,这两条单链碱基序列互补,因为它们是由双链DNA解旋形成的

耶鲁公开课 - 生物医学工程探索课程节选

It has to do with the nature of this complementary binding between double stranded DNA and the fidelity of this base pair matching in forming stable DNA molecules.

这些特性能从根本上解释,为何DNA双链的碱基能互补配对,以及在形成稳定的DNA分子结构时,碱基互补配对为何具有一致性

耶鲁公开课 - 生物医学工程探索课程节选

If I'm talking about two DNA strands and they differ only in one or two base pairs they won't be exact complements and they won't form this double helix.

假设有两条DNA单链,有一两个碱基不能配对,它们就不能完全互补,也无法形成双螺旋形结构

耶鲁公开课 - 生物医学工程探索课程节选

Chinese banks sometimes outbid Western banks because they often offer commission-based pay allowing a sponsor to double his base salary in a good year, the bankers said.

WSJ: China's Rarest Bankers: 'Sponsors'

Mercer hit a solo shot after Wright made a nifty barehanded play at third base to throw out Starling Marte, and Tabata hit an RBI double off the base of the wall in center field.

WSJ: Valdespin, Mets stung in 11-2 loss to Pirates

Charlie Furbush (0-2) entered with one out and walked Brett Gardner before Cano tied it with his double off the base of the wall in right-center.

WSJ: Yankees rally, beat Seattle after Hernandez exits