Increasing production in Europe and America and drawing on India's vast strategic stockpile may yield 10-15m tonnes-a substantial quantity, but less than a third of Ukraine's and Russia's combined annual exports.

在欧洲和美洲增加产量，并利用印度庞大的战略储备，可能能产出1000 - 1500万吨——这个量相当大，但还不及乌克兰和俄罗斯年度出口量的三分之一。

They interpreted the bright-toned rocks Zhurong's camera caught as a layer of " duricrust" that would have been sculpted by a substantial quantity of liquid water, perhaps rising groundwater or melting subsurface ice.

他们将“祝融号”相机捕捉到的亮白岩石解释为一层“硬壳”，它可能是由大量液态水雕刻而成的，可能是上升的地下水或融化的地下冰。