请教关于涡的几个单词

蜂鸟飞飞

我在所见即所得模式下发了好几遍，都没发成功，说我没输入内容，最后一遍截了个图，哎，输入很慢的，希望截图能看清
算了，重输入一遍
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这些是看文献的时候遇到的一些短语和句子，涉及 vortex ,swirl ,vortices,helix,vortical,vorticity,金山词霸翻译都差不多，但在英文里能看出来，差别还是挺大的，所以请教一下
1，vortex wandering
2，a great deal of effort has been focused on the study of these vortices ,vortex breakdown phenomenon
3，vortical substructures
4，rms swirl velocity
5。shear layer vortices due to the Kelvin-Helmholtz instability exist in the separated shear layer
6，the sense of helix is the same as the direction of swirl
7，the rate at which vorticity is fed into the leading edge vortex

[ 本帖最后由 蜂鸟飞飞 于 2010-8-23 22:56 编辑 ]