So, as crude as they are, tallies of species' statuses let conservationists take the pulse of life on the planet.

因此，尽管粗略，物种状态的计数让自然资源保护学家们感受到行星上生命的脉动。

youdao

It has also scanned the surface of the planet using Mola (Mars Orbiter Laser Altimeter), which beams an infrared laser pulse towards the surface of the Red Planet 10 times a second.

BBC: New view of giant Martian volcano

By unleashing a massive pulse of electromagnetic radiation sweeping over the planet, a severe solar storm could potentially knock out the electric power grid, silence radio and satellite communications and disrupt GPS navigation systems.

FORBES: Sky Full of Trouble; Bracing for Super Solar Storms

These new songs ride on what "Tumbling Dice" and all the other classics did, an eternal kind of pulse, a group cohesion and swing that no other rockers on the planet can touch.

NPR: The Stones Defiant: 'A Bigger Bang'