fixed stress造句

( 5 ) the water circulation system reach a stable state after a year when the exploitation of hdr . namely , there a fixed stress gradient from injection well to production well keeping the normal function , and the stress gradient is higher nearby the injection well , reaching to 43 . ompa / km , but the stress gradient is only 10
( 5 )高温岩体地热开发的水循环系统在一年后变的稳定，即从注入井到生产井有固定的压力梯度维持系统的运行，而且在注入井附近区域的压力梯度较’大，达到43 . ompa / km ，中间区域的压力梯度仅为10 . 7mpa / km 。
It's difficult to find fixed stress in a sentence. 用fixed stress造句挺难的