评论
打印
A 2,400-meter-deep physics laboratory in Southwest China's Sichuan province became operational on Thursday, making it the deepest and largest underground lab in the world.
周四，位于中国西南部四川省的一座深达2400米的物理实验室开始投入运行，这也使其成为世界上最深、最大的地下实验室。
The Deep Underground and Ultra-low Radiation Background Facility for Frontier Physics Experiments(DURF) is located beneath Jinping Mountain in Sichuan's Liangshan Yi autonomous prefecture.
该极深地下极低辐射本底前沿物理实验设施（DURF）位于四川凉山彝族自治州的锦屏山山脚下。
The DURF, with a total room capacity of 330,000 cubic meters, is the second phase of China Jinping Underground Laboratory.
DURF是中国锦屏地下实验室二期项目，总容积达33万立方米。
It started construction in December 2020 and was jointly built by Tsinghua University and Yalong River Hydropower Development Company Ltd.
该项目于2020年12月开始建设，由清华大学和雅砻江流域水电开发有限公司共同建造。
Scientists believe the laboratory provides a "clean" space for them to pursue the invisible substance known as dark matter.
科学家们相信，该实验室为他们研究被称为暗物质的不可见物质提供了一个“超洁净”的空间。
They said the extreme depth helps block most cosmic rays that mess with the observation.
他们表示，极端的深度有助于阻挡干扰观测的大多数宇宙射线。
"The DURF is exposed to a flux of cosmic rays which is only one hundred-millionth of that on the Earth's surface, allowing scientists to conduct experiments effectively.
“能触达DURF的宇宙射线，只有地球表面的一亿分之一，这使得科学家能够有效地进行实验。
But radon is released by bedrock.
但氡气是由基岩释放的。
So we have to contain radon within an extremely low concentration through waterproof measures and keep it outside the laboratory."
所以我们必须通过防水措施将氡气控制在极低的浓度，并将其置于实验室之外。”
