Zhè jiā gōngsī de xiāoliàng chūxiàn le jǐngpēn shì zēngzhǎng.
This company's sales showed explosive growth.
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usage
Originally a petroleum term (an oil or gas well blowing out uncontrollably), 井喷 is now widely used as a metaphor in business and news - 井喷式增长 ('blowout-style growth') means sudden, explosive expansion.