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.

提出了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提供了一定的依据。

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.

整流式加热器提高热风温控制效果，使树脂干燥温与热风设定温一致。