When tides drag the ocean over a shallow barrier such as a ridge on the ocean floor, it creates waves in the lower, denser layer of water.

当潮汐经过像洋盆上的山脊等浅层障碍时，就会在低层密度大的水体里造成波浪。

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The drilling of lower channel sand bodies along the ridge of the nose-shaped uplift is successful, making Ge 7 to Hongtai 2 a continuous oil/gas-bearing area.

沿鼻隆脊部钻探低部位河道砂体获得成功，实现了疙7-红台2号含油气区的复合连片。

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Compare to the normal rectangular waveguide, ridge waveguide has the character of broader bandwidth, smaller dimension, lower equivalent characteristic impedance, etc.

与普通矩形波导相比，脊波导具有工作频带宽、尺寸小、等效特性阻抗低等特点。

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Plus, Bay Ridge's lower housing cost allows them to have a larger space to raise their daughter and display their work.

WSJ: Sol LeWitt Meets Bay Ridge

In a written statement, U.S. Secretary of Homeland Security Tom Ridge said the decision to lower the risk level followed a review of intelligence and an assessment of the threats by the intelligence community.

CNN: Terror threat lowered to Yellow