The mechanical properties of improved double-base propellants enabled one to envisage grain geometrics with large combustion areas and consequently high thrusts .

经过改进的双基推进剂的机械性能使我们能够指望获得大燃烧面的药柱几何形状， 从而得到大推力。

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The effect of different technology including casting and extrution on the combustion performance of smokeless modified double-base propellant with ACP was studied.

研究了不同工艺对含ACP无烟改性双基推进剂燃烧性能的影响。

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The results show that the crook of these propellants burning curves were caused by the difference of thermal decomposition behavior between the solid filler RDX and NC-NG double-base binder.

试验结果表明：NC、NG组成的双基粘合剂与固体添加物rdx在热分解特性上的差异是导致硝胺发射药燃速曲线转折的原因。

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After Toronto took a 2-1 lead against Phil Hughes on Lind's RBI single in the fourth and Izturis' run-scoring double off the base of the right-field wall in the sixth, the Yankees overcame a deficit for the fourth straight day when Lyle Overbay hit two-run homer in the seventh that was caught on the fly by Yankees reliever David Robertson in the right-field bullpen.

WSJ: Dickey drops to 2-4, Blue Jays to 9-17

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

WSJ: Granderson goes hitless in return to Yankees

Three of the first four batters reached against Hefner including Allen Craig's RBI double just inside the third-base line for the lead and Jon Jay added a bases-loaded sacrifice fly that barely counted when Matt Holliday sprinted home just ahead of third baseman David Wright's tag on Craig, attempting to advance on left fielder Lucas Duda's throw.

WSJ: Wigginton dash boosts Cardinals past Mets 6-3