Sigil has a number of special traits, one of which is objective directional gravity.

印记城有着数种特殊的特性，其中一种就是客观重力定向。

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The galaxies, containing a vast number of stars, swing past each other in a graceful performance choreographed by gravity.

这两条银河容纳了大量的星星，在重力的作用下，他们以优美的舞蹈动作相互摇摆旋转。

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The categorization is based on 4 parameters, namely, flight height, flight Mach number, engine rotational speed and overload on the engine center of gravity.

选取了飞行高度、飞行马赫数、发动机转速以及发动机重心法向过载等4个参数作为分类的原始依据参数。

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Watkins says there also has been an increase in the number and gravity of attacks against international aid organizations.

VOA: standard.2009.08.07

Beyond the standard abilities to set the level and the number of players and bots, "Mutators" like Low Gravity, Sniper Arena, and Chainsaw Melee change everything about the way deathmatch is played.

CNN: Unreal Tournament: Unreal multiplayer action

Sony also announced a number of titles for the system, with Little Deviants, Reality Fighters and Gravity Daze being original games, with franchise titles like Uncharted, Killzone, Wipeout, Resistance, Little Big Planet, Hustle Kings and Hot Shots Golf.

FORBES: Sony Reveals PSP Successor: The NGP