介绍了模拟港口岸形、物标回波和其他助航物标回波的生成,雷达回波的干扰、遮挡和衰减,固定距标圈、电子方位线和活动距标圈的显隐与图像的有关裁剪算法等。
Also the details about the coast, target and other navigational subjects echo and the interference of echo and Ring, Ebl, Vrm of Radar and clipping algorithm etc.
甜甜圈,这可能是33至45美分的费用每名标25美分。
The donuts, which probably cost 33 to 45 cents each, were marked at 25 cents.
但也可按照产品图纸要求标在护罩、保持架、挡圈,密封或防尘装置的端面上。
But can also be marked in accordance with the requirements of Product drawings at guard and maintain the planes, ring, seal, or device-side surface dust.
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