In a polar circuit it causes the loop current to flow in a direction opposite to that for a mark impulse.
在极性电路中，空号脉冲促使环路电流向传号脉冲相反的方向流动。
Oil in the Loop Current Still a Big if.
石油是否进入环流还存在极大的不确定性。
However, there is also an eddy of cooler water (purple) circulating counterclockwise at the top of the Loop Current.
不过，在洋流的顶端还出现一个逆时针方向旋转的水流(紫色部分)，而且温度较低。
The latest National Oceanic and Atmospheric Administration (NOAA) forecast shows that the Gulf oil slick will likely remain north of the Loop Current—at least until Wednesday.
美国国家海洋和大气管理局（NOAA）最新的预测显示，至少在周三以前，海湾浮油可能将继续漂流在环流以北的地区。
Once in the Loop Current, oil can travel south and enter the Gulf Stream, a powerful ocean conveyor belt that carries warm water up the eastern seaboard.
一旦进入环流，原油就能向南流而进入墨西哥湾流，墨西哥湾流是一股强大的暖流，它将温暖的海水带到东部海岸。
Once in the Loop Current, oil can travel south and enter the Gulf Stream, a powerful ocean conveyor belt that carries warm water up the eastern seaboard.
一旦进入环流，原油就能向南流而进入墨西哥湾流，墨西哥湾流是一股强大的暖流，它将温暖的海水带到东部海岸。
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