Single-speed cycles-that is bikes with no gears, are really only suited to short, casual rides.

单速自行车是指没有变速装置的自行车，只适合短途的休闲旅游。

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Via computer numerical simulation, the fundamental diagrams of the single-speed lane and multi-speed lane CA traffic flow models are got, and these two models' traffic flow characters are presented.

通过计算机数值模拟，得到了单速车道和多速混合车道元胞自动机交通流模型的基本图，并对这两种模型的交通流特性进行了分析和讨论。

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The vehicle has a single-speed transmission that makes it feel sprightly off the line, producing acceptable acceleration (reported at 9.5 seconds from zero to 60), good for around town, and a top speed limited to 85 miles per hour.

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Beneath its carbon fiber skin the 6.5-litre V12 engine and seven-speed single-clutch gearbox get the car to 60 miles per hour in a flat three seconds.

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Google entered the scene with a gleaming four-part corrective: purity, accuracy, speed and single-mindedness.

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