Sprinkler pump shell cracks, or impeller, leaf damage, or seal damage, will affect the degree of vacuum, water pumping, water pressure is too small or the phenomenon.

洒水车水泵泵壳出现裂纹、或者叶轮、倒叶损坏、或者水封破损，都会影响真空度，出现水抽不上来，或者水压过小的现象。

youdao

The vacuum degree at tailrace adit varies most significantly at the lowest downstream water level and improves gradually along with the rising of downstream water level.

当下游水位最低时，尾水管进口真空变化最明显，随着下游水位的上升，尾水管进口真空度逐渐改善。

youdao

For this new reactor of water treatment called Integrated Membrane Aerobic reactor (IMA) the abstract absorption cycle and the degree of vacuum are essential to the steady operation.

一体式膜好氧生物反应器是一种新型的水处理反应器，抽吸周期和抽吸真空度的选择对于它的稳定运行具有重要意义。

youdao

Paton Walsh: There will be a period of definitely chaos, warlordism perhaps, and sort of a vacuum whilst the armed groups who won the rebellion struggle for some degree of control over territory.

CNN: What's next for Syria in 2013?