You can get an idea of the relative amounts of radiation various cellphone models emit by looking at their SAR, or specific absorption rate.

你可以通过查看不同手机型号的吸收率，来了解手机的辐射。

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Under the new rules, stores will be required to show the Specific Absorption Rate (SAR) of radiation next to phones they sell with a clearly readable 11-point or larger font.

美国旧金山本周二通过了一项手机辐射法，这项法令规定出售手机的店铺必须在销售的手机旁边以11号以上大小的字体标注手机的辐射吸收率指数 （Specific Absorption Rate (SAR)：标示手机辐射能被人体吸收的程度的一种衡量指数）。

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The law requires that retailers post the specific absorption rate (SAR) — the amount of radio waves absorbed into the user's body — next to all phones in no less than 11-point type.

该法案规定手机销售商要注明手机的辐射吸收系数(SAR)——对用户身体产生的电磁波吸收量，规定所有手机都不少于11点型式。

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The Federal Communications Commission limits cell phone radio frequency energy emissions, called the specific absorption rate (SAR), at 1.6 watts per kilogram, as measured over one gram of tissue.

CNN: Scientists debate possible cell phone link to brain cancer

The Australian research focused on the thermal effects or specific absorption rate (SAR) of radio frequency radiation - a measure of its actual effects on brain tissue, whereas the earlier study simply looked at electromagnetic radiation levels.

BBC: Hands-free mobiles given safety boost

The rate at which energy is absorbed by the body when exposed to RF is referred to as the specific absorption rate, or SAR.

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