According to analyze cracks repair mechanism and repair time, obtain the request of the cracks slotwall and patching material when crack patching and the best patching time.
Considering the effect of waveguide wall thickness, the expressions for solving the fields on the surfaces of the slot, the scattering fields and the equivalent parameters are derived.
考虑到波导壁厚度的影响，导出求解缝隙的口面场、散射场和等效参数的表达式。
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Use: Be applicable to various cement concrete building, bridge, ships, the chemical engineering equipments and an outside wall antisepsis inside etc. of slot.