怎么翻译

各位高人：
If not a percentage of nitrogen removal is to be maintained but rather a concentration value, the influent concentration is of great influence; if the concentration in a random sample is to be met (e.g. qualified random sample in accordance with the Wastewater Ordinance in Germany), this must be taken specially into account with the dimensioning.这几句话怎么翻译，是说脱氮问题的。