Sentence examples for drainage concentration from inspiring English sources

When the sealing length is 15 20 m and the negative pressure is 15 20 kPa, the initial gas drainage concentration can reach 60% 80% %.

The absolute gas emission rate was up to 116.3 m3/min with an average flow of 69.1 m3/min at an average drainage concentration of nearly 85%%.

The average gas drainage concentration was 51.8 %. Figure 5 shows that there are nine peaks on the gas drainage rate and concentration curves.

During mining, alternate drainage of surface wells was accomplished and the maximum gas drainage concentration of a single well could be up to 100%% for each surface well.

(2) From the simulation results, the high-level drill crossing hole had a wider influence and higher drainage concentration than the low hole.

Although prehistoric arroyo formation must have been governed by natural processes, the most recent arroyo cutting episode was at least partially caused by or exacerbated by an influx of American settlers and their construction of drainage concentration features.

Calcium sulfate scaling is a known issue with drainage water concentration systems.

It was determined that less than 3% of the land in these agricultural watersheds would need to be managed as wetland to reduce the drainage nitrate concentration to below 0.5 mg L−1.

The field test results indicate that, after using the FG, the average drainage gas concentration increases by 25.9% and 27.6% and the average negative pressure of extraction increases by 2.7 kPa and 3.5 kPa compared with expansive cement and polyurethane, respectively.

Owing to the negative pressure being great at the sealed wall at the end of the retained roadway, the drainage rate and concentration are higher than those at the buried pipes in filler wall.

Owing to the negative pressure being great at the sealed wall at the end of the retained roadway, the drainage rate and concentration are higher than those at the buried pipes in filler wall.  .