HSK 7-9
储量
chǔliàng名
remaining quantity; reserves (of natural resources, oil etc)
这片地区煤炭储量丰富。
Zhè piàn dì qū méi tàn chǔ liàng fēng fù.
This area has abundant coal reserves.
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Appears across levels (7-9) in the HSK 3.0 word list.