The explorers descended into the depths of the
cavern, their lights revealing stunning stalactites and stalagmites.
探险家们深入洞穴深处，他们的灯光照出了令人惊叹的钟乳石和石笋。
Legend has it that a hidden treasure is buried deep within the
cavern, guarded by ancient spirits.
传说中，有一个隐藏的宝藏深埋在洞穴之中，由古老的精灵守护着。
The echo of our voices bounced off the walls of the
cavern, creating an eerie ambiance.
我们的声音在洞穴的墙壁间回荡，营造出一种幽森的氛围。
Biologists discovered a previously unknown species of bats hanging from the ceiling of the
cavern.
生物学家在洞穴的天花板上发现了一种以前未知的蝙蝠物种。
The
cavern served as a refuge for the early humans during harsh winters, providing shelter from the cold.
在严冬时节，这个洞穴为早期人类提供了避难所，保护他们免受寒冷侵袭。
The spelunking team equipped with ropes and helmets prepared to navigate the treacherous passages of the
cavern.
装备了绳索和头盔的洞穴探险队准备穿越洞穴中危险的通道。
As they ventured deeper, the air in the
cavern became damp and heavy, filled with the scent of minerals.
当他们深入探索时，洞穴中的空气变得潮湿而沉重，充满了矿物质的气息。
The
cavern's natural acoustics made it a popular venue for underground music concerts.
洞穴的自然音响效果使其成为地下音乐会的热门场所。
Archaeologists unearthed ancient artifacts in the
cavern, shedding light on the lives of past civilizations.
考古学家在洞穴中发掘出了古代文物，为了解过去文明的生活提供了线索。
A small stream trickled through the heart of the
cavern, its gentle melody harmonizing with the sounds of nature.
一条小溪潺潺流过洞穴的中心，它柔和的旋律与大自然的声音和谐共存。
When power consumption is lower than the amount generated by new energies, the excess power will be used to compress the air into a salt cavern.
"According to Mu, there are primarily two types of underground gas storage in China - depleted oil and gas reservoir storage and salt cavern storage - both of which have unique and specific geological requirements, which also pose challenges for gas suppliers.
Salt cavern storage, on the other hand, requires a long construction period using water to dissolve underground rock salt to create storage space, creating a higher unit construction cost to operational volume, but a limited amount of cushion gas requirement, higher turnover and recoverable cushion gas, he said.