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。

youdao

Choose a device with the lowest SAR possible (SAR = Specific Absorption Rate, which is a measure of the strength of the magnetic field absorbed by the body).

选择一个尽可能的的最低吸收率设备（SAR=Specific Absorption Rate，是一个人体吸收磁场强度的计量单位）。

youdao

The three sets of observations that purported to see methane on Mars all relied on the absorption lines which the gas imposes on light at specific wavelengths.

三组观测声称火星上有甲烷依赖于甲烷气体所影响的吸收(谱)线处在一个非常特别的波段上。

youdao

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

FORBES: Should The FCC Re-Examine Cell Phone Radiation?

In addition, according to Adair, the whole heated debate about specific absorption rates, or SAR, is beside the point because the SAR is not a measure of biological insult.

FORBES: Should The FCC Re-Examine Cell Phone Radiation?

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