Sculptures must, for example, be stable, which requires an understanding of the properties of mass, weight distribution, and stress.

例如，雕塑必须是稳定的，这就需要理解质量、重量分布和压力的特性。

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The amount of angular momentum, say, a spinning skater has depends on both the speed of rotation, and the weight and distribution of mass around the center.

角动量的大小，取决于旋转中的滑冰选手的旋转速度、体重和绕旋转中心的质量分布。

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While gyro and trail effects can contribute to stability, other factors such as the distribution of mass and the bike's moment of inertia can play a role as well.

Ruina说，虽然陀螺效应和轨道效应都有助于稳定性的提高，但是还有其他因素诸如质量的分布，车子当时的惯性。

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In the days before mass production, mass distribution and mass media, when customers knew the butcher, the baker, and the candlestick maker by name, they made little distinction between the seller and the product or service offered.

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Indeed, the distribution of mass through the galaxy roughly followed the distributions of visible matter, with no need for exotic new particles.

ECONOMIST: Cosmology

Tony Tyson and David Wittman, who work at Lucent Technologies' Bell Laboratories, in New Jersey, and their collaborators have proposed building a telescope that estimates the distribution of mass in the past by analysing these deflected light-waves, a technique known as three-dimensional mass tomography.

ECONOMIST: Cosmology