The faceblank is an important functional assembly in the overall design of the facepiece,which puts other functional assemblies,such as eyepieces,breathing system,voice transmitter and nosecup etc.

• 罩体是将防毒面具中各功能部件(如眼窗、呼吸气系统、通话器和阻水罩等)组成为一个整体的骨架,是面罩总体设计中的一个重要部件,涉及面罩十多项技术性能指标。