Countermeasure of erosion protection for groyne head of Chongming Island
崇明岛丁坝坝头冲刷防护对策初探
The emergence of rill head is the key factor boosting up the erosion of different section on slope.
沟头的出现是导致各侵蚀段侵蚀活跃的重要因素。
Watt head and immediately Tongwa, mainly from the protection of the eaves, is not the role of wind and rain erosion.
瓦当即筒瓦之头, 主要起保护屋檐, 不被风雨侵蚀的作用。
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