Mercury's huge iron core takes up more than 60% of the planet's mass.

水星巨大的铁核占了其自身重量的60%多。

youdao

Washables can have a lower carbon footprint, but only if you have an energy-efficient washing machine, use a 60-degree wash cycle, limit yourself to 24 nappies, and don't tumble dry or iron them.

只有在你有一个高能效的洗衣机，使用60度洗衣周期，限制在24片尿布以内，不要甩水和熨干的情况下，可洗尿布的碳足迹才会相对比较低。

youdao

Vale, a Brazilian miner, gets a hefty 60% of its revenues from iron ore.

巴西的矿业公司Vale高达60%的收入同样来自铁矿石。

youdao

Evidence for past supernovae is thin on the ground, although in 1999 German researchers found traces of iron-60 in south Pacific sediments ( Physical Review Letters, vol 83, p 18).

FORBES: Ancient Supernova Explosions Left Their Scars on Earth

Until then, the PRI (Institutional Revolutionary Party) had ruled Mexico with an iron fist for nearly 60 years and it would remain in power for another 12.

CNN: Mexico's new leader measured against old corruption

In 1940, in Romania, the pro-Nazi Iron Guard slaughtered more than 60 aides of the exiled king, including former Prime Minister Nicolae Jorga.

CNN: Thursday,