然而，这一切是否都无所事事和档案，均衡器和有毒金属似乎有许多艰苦的工作，你一定都能选择的碳纤维螺旋桨。
However, if all this mucking about with files, balancers and toxic metals seems like a lot of hard work, you can always opt for carbon fibre propellers.
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.
铜质螺旋桨冲砂时必须采用非金属磨料。
Non-metal abrasive should be adopted when copperpropeller is sand washing.
铜质螺旋桨冲砂时必须采用非金属磨料。
Non-metal abrasive should be adopted when copperpropeller is sand washing.
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