sheathed

1.The result shows that inspecting cabtyre sheathing by ultrasonic is feasible, and the immersion method would be the most reasonable one.

提出了采用水浸法及聚焦探头是比探伤方法，同时为超声波应用于硬质橡胶材料质量检测提供了一定依据。

2.A sheathed heater is used for the drying heater,Also the heater box had a structure to which rectification is added so that it has better temperatures and hot airset temperature is smaller.

整流式加热器提高热风温度控制效果，使树脂干燥温度与热风设定温度基本一致。