The Air Force quickly became the think tank's main contractor, and Rand began consulting on everything from propeller turbines to missile defense.
空军很快成为了这家智库的主要承包商，兰德开始就从螺旋桨涡轮到导弹防御等一切问题进行咨询。
Through Hap’s connections, the Air Force quickly became the think tank’s main contractor, and RAND began consulting on everything from propeller turbines to missile defense.
通过Hap的人际关系，空军很快成为智囊团的承包商，兰德也由此开始研讨从推进涡轮到导弹防御的一切课题。
The strength calculation formula of the screw propeller under the action of centrifugal force was obtained through multivariate fitting.
经多变量拟合，得到了离心力作用下螺旋推进器的强度计算公式。
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