What are the tools of managing your factoring exposure, i. e. advanceratio, eligibility ratio?
管理保理的风险暴露有哪些工具，如：预付比例，合格率？
2
In the case of heavy load when the advanceratio of propeller is small, the contraction of wake has large effect on the performance of the propeller.
在小进距比的重载情况，螺旋桨尾涡的收缩对螺旋桨的性能影响较大。
3
Being sealed on the isolation piece, the baffler forms closed area in advance. Thus, the invention raises reliability of image module assembled, and ratio of fine product.