The aluminium body is 12% lighter than if built with steel.

用铝制作比用钢制作重量要轻12%。

《牛津词典》

The central body of the plane is made entirely of carbon composite material, which makes the plane lighter and more fuel efficient.

机身主体全部由碳合成材料制成，因此重量更轻，更加省油。

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That means they can, according to Dr Gonzalez-Garcia, be used like X-rays passing through a human body, to pick out denser rocks from lighter ones.

根据加西亚博士的说法，这意味着微中子可以像穿过人体的X光一样，用于将密度较大的岩石和较轻的岩石区分开来。

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The body is light to reddish brown, but lighter on its underside.

VOA: special.2010.06.22

The internal design architecture of the new PS3 system, from the main semiconductors and power supply unit to the cooling mechanism, has been completely redesigned, achieving a much slimmer and lighter body.

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Even the 13-inch MacBook Pro (which had been tweaked over the summer) received a bonus upgrade in the form of a Retina Display and a solid state drive, as well as a thinner and lighter body.

FORBES: When Will Apple Release the iPhone 5S, iPad Mini 2?

Other advantages include a lighter magnesium alloy body, an NX power pin-enabled hot shoe for adding an external mic or flash, and a new micro-USB trigger cable.

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