残留螺旋 relic coil
- 这些残留必须彻底清除。 先用高压淡水清洗除去螺旋桨表面的灰尘污垢和微量盐分。
The silicone anti foulingpainting system needs high requirements on the surface's cleanliness, So these residue must be cleared. - 冲砂后螺旋桨表面会有很多的灰尘和磨料的残留。
There will be a lot of dust and abrasive residueon the surface of the propeller after sand washing. - 如果用金属磨料如钢砂冲击铜质螺旋桨会在铜表面上残留,会与铜发生电偶腐蚀。
If such as metal abrasive is used in sand washing, itwill remain on the surface of the copper propeller, then galvanic corrosionwill occur with Cu.
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