例句與造句

1. it is important to eliminate or degrade the effect caused by the beam width of echo sounders and reflect the true seabed
   為提高海底地形的測(cè)量精度，應(yīng)消除或減弱波束角效應(yīng)影響。
2. It's difficult to find echo sounders in a sentence. 用echo sounders造句挺難的