Deduce the air permeability calculating formula base on the regression analysis method. Provide a strong basis for the selection of PET, aluminum PET and PVDC film in food packaging.

最后利用回归分析法推导出pet、镀铝PET及PVDC薄膜的透气率计算公式，为塑料包装材料在果品包装方面的选用提供有力依据。

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In this paper base tangent length is put forward and lead angle calculating formula is deduced.

这篇文章提出了公法线长度并推导出超前角的计算公式。

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Unfortunately, over the years Sega has seen fit to meddle with this world-beating formula and made changes that have disappointed, enraged and then dismantled Sonic's fan base.

不幸的是，多年以后，Sega开始媚俗，开始“公式化”的做出所谓的“改变”，索尼克的fans对此失望，愤怒，但又无能为力，最终不再支持自己的偶像。

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Toyota is said to be testing three different designs for a Formula One car at its base in Cologne under the management of project leader Alain Decortanze and former rally driver Uwe Anderson.

BBC: Toyota set to join F1

Barbaroux is also the founder and president of French manufacturer Formulec, which has produced the EF01 prototype car that is the base model for future Formula E cars.

FORBES: Could Formula Racing Really Go Electric? We're About To Find Out

Failing to address matters of concern to the various parts of the Republican base - and to the future of our nation - is a formula for his defeat, no matter how compelling his position may be on economic and fiscal matters, the one leg of the stool on which his campaign currently rests.

CENTERFORSECURITYPOLICY: The G.O.P.'s One-Legged Stool?