Unless maximum practical chevron surface area has been installed , no steam separation efficiency credit shall be allowed for the mesh added to the inlet of the chevrons .
除非已安装最大实践雪佛兰表面面积,尖顶入口处添加的网筛不得有蒸汽分离效率。
When did you sew on these chevrons , sergeant lipton ?
你何时把这些阶级绣上去的李普中士?
These chevrons do not show up in the final envelopes .
在最终的信封中不会显示此符号。
Others built chevrons of plastic booms to block the oil from coming ashore .
有的制作了塑料帆桁以阻挡原油向海岸的渗漏。
It sports chevrons on the nacelles , or fan housings .