Long period operation indicates that CB-7 catalyst is of high stability.

整个运转周期的结果表明，催化剂的稳定性优良。

youdao

The struggle target of long period operation of unit from now on is put forward too.

同时提出了装置长周期运行的奋斗目标。

youdao

After using that burner, the boiler safety, economic and long period operation were secured further.

改用该燃烧器后，进一步保证了锅炉安全、经济和长周期运行。

youdao

Once his heart had fully recovered, he would need an operation to determine the extent of the ligament damage, followed by a long period of physical therapy.

NEWYORKER: The Valetudinarian