1. A mouse used for cloning had been preserved at - 20 C, a temperature similar to frozen ground.
2. When authorities finally brought the lad to the scene around 6 pm, she was almost frozen stiff and had to be helped to the ground by firefighters.
3. The man's neighbors spotted him lying on the ground motionless and phoned police, who confirmed the deceased had frozen to death.
4. frozen ground在线翻译
4. Spreading mulch before the ground has frozen may attract small animals searching for a warm place to spend the winter.
5. Rescuers said the accident was caused by the thawing of frozen ground, but the investigation is still under way.
6. Permafrost is ground that is permanently frozen and is prone to heaving as temperatures fluctuate.
7. It was stuck into the ground but it tipped over suddenly on Tuesday after the frozen ground thawed out.
8. Frozen ground or permafrost is important for the stability of buildings and infrastructure, the report said.
9. The soil has frozen to a depth of more than 20 centimeters, which means the snow is unable to soak into the ground below.