The strength of RF fields is greatest at its source, and diminishes quickly with distance.

射频场的力量在射频源最强，并随距离而迅速减弱。

youdao

Both craft recorded the density of particles and the strength of the magnetic fields.

两个探测器都记录了粒子密度和磁场强度。

youdao

Last year, he and colleague Matt Penn pointed out that the average strength of sunspot magnetic fields has been sliding dramatically since 1995.

去年，他和同事Matt Penn指出，太阳黑子磁场的平均强度从1995年起，已经急剧下滑。

youdao

Needful diversions of wealth and of strength from the fields of peaceful industry to the national defense have not arrested the plow, the shuttle,or the ship;

VOA: special.2009.11.23