Because of the particularity of the medium and material, our knowledge of corrosivity of sea mud and behavior of pipeline steel exposed in it is not enough.

由于介质和材料的特殊性，人们对海泥的腐蚀性和管线钢在其中的腐蚀行为了解得还不太深入和系统。

youdao

This mud material will soon take effect.

这种泥浆药品很快就会成效。

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No proof has been given of this mud material being harmful. It is still much used.

还没有证据证明这种泥浆药品有害，因此，它还用得很广泛。

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This is significant because it strongly supports bird conservationists, who have been arguing that most outbreaks in South-East Asia can be linked to movements of poultry and poultry products or infected material from poultry farms, such as mud on vehicles or people's shoes.

ECONOMIST: The aves, and ave nots