To exclude higher oxygen concentration in an equipment with an potential source of ignition we use Nitrogen to dilute the air in the vessel.
避免设备内氧气浓度过高以及火源的存在,使用氮气稀释釜内空气。
2
Washing fresh produce thoroughly in dilute solution of vinegar or bicarbonate of soda, and then rinsing in clean water will remove most potential contaminants, such as soil and surface residues.