sheathe 托福

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

出采用水浸法及聚焦探头是比合理的探伤方法，同时为超声波应用于硬质橡胶材料的质量检测一定的依据。

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。