Theaverage percentage of the NH_4~+-N occupied the inorganic nitrogen was 96 %, and occupied the TNwas 88%, indicated that the NH_4~+-N content was the highest in the porewater of bottom sediment inthe entire cultivated process.
由此表明：在整个养殖过程中虾池底泥间隙水中所含的氮中铵态氮的含量最高。
参考来源 - 养殖水体水华发生的原因探讨The usual form defect of piles include the party necked-in of piles , shaft mud cake and bottom sediment, etc.
常见的缺陷形式有桩身局部缩径、桩侧泥皮和桩底沉渣过厚等质量缺陷。
参考来源 - 泥皮与沉渣对灌注桩承载性状影响的数值模拟·2,447,543篇论文数据，部分数据来源于NoteExpress
The layering properties of bottom sediment were studied.
研究了底泥系统的分层特性。
A spatulate depression scoured by a turbulent current of water flowing over cohesive bottom sediment.
湍流在粘结性水底沉积物上流动时冲刷出的一种抹刀形的凹坑。
Moreover, it proposes views and ideas of administrating the Dashahe bottom sediment poison pollution.
此外，就大沙河底泥毒物的治理方法提出了自己的见解。
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