In this dissertation, the relationship between the bandwidth, the array scheme and feeding waveguide is studied. As a solution, choke grooves are used to expand the bandwidth.

在本论文中，分析了波导缝隙天线的带宽与其组阵方式和馈电波导宽高比的变化规律，并且提出了用扼流槽扩展带宽的方案。

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And because of the increased containment capacity out of the sealing cap, the choke line, which was feeding to the Q4000 at about 10, 000 barrels a day, will have its containment capability increased to 20, 000 to 25, 000 barrels a day.

WHITEHOUSE: Press Briefing