ultrahigh sand concentration

例句：

1. 1. The ultrahigh concentration of salt in the ocean is a major concern for marine life.
   海洋中高浓度的盐对海洋生物是一个主要问题。
2. 2. Ultrahigh-tech manufacturing processes are used to produce advanced electronics.
   使用高科技制造过程来生产先进的电子产品。
3. 3.The company's ultrahigh-end products are highly sought after by customers.
   该公司的高端产品深受顾客欢迎。