We use theory of trees, B-series, P-trees and P-series to deduce the order conditions of the methods constructed.

分别应用根树、B -级数理论、P -根树、P -级数理论推导方法的阶条件。

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Environmental and safety rules and regulations and replacement of E-series glycol ethers by P-series glycol ether are the major restraints for the E-series glycol ether market.

同时，环境和安全性相关法规和P系列乙二醇醚的替代成为妨碍该市场成长的要素。

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P. S. - If you are interested in memory, you may also want to see my earlier series on 5 Key Paths to Improving memory as well as my podcast with Fiona McPherson from About memory.

后记：-如果你对记忆感兴趣的话，你也许愿意了解我早先的“5个提高记忆的捷径”系列和在“关于记忆”中与菲欧娜·麦克福森的广播片段。

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The Satellite P-Series are also equipped to take advantage of Windows 8 with spacious, buttonless touchpads ideal for Windows 8 gestures.

ENGADGET: Toshiba updates its all-in-ones, mainstream Satellite laptops for early 2013

The Satellite P-Series is available in 14-, 15.6- and 17.3-inch diagonal screen sizes with a new Full HD 1920 x 1080 resolution option on the 17.3-inch model and a touchscreen for the 14-inch model.

ENGADGET: Toshiba updates its all-in-ones, mainstream Satellite laptops for early 2013

Luckily, there are a few pics and specs to accompany the filing, which tell us it weighs 120g (4.2 ounces) and measures 132.6 x 65.5 x 6.18mm (5.2 x 2.6 x 0.2 inches), meaning it could be the super-slim P series handset a Huawei exec hinted at in January.

ENGADGET