ultra high vacuum measurement

例句：

1. 1. This instrument is used for ultra-high vacuum measurement.
   这个仪器用于超高真空测量。
2. 2. The research team conducted an ultra-high vacuum measurement to study the effects of extreme pressure on materials.
   研究团队进行了一次超高真空测量，以研究极端压力对材料的影响。
3. 3. In this experiment, the ultra-high vacuum measurement was crucial for achieving accurate results.
   在这个实验中，超高真空测量对于获得准确结果至关重要。