On the basis of previous study on deep channel, the South Branch,Xinqiao Channel,Nanxiaohong and Main Channel of Nangarg are chosen as the typical flood and ebb channels. Field data sampled in the flood season of 2001 and the dry season of 2003 are used as the base of the analysis of hydrodynamic characteristics, such as current, sediment, dominant current and dominant sediment.

在前人對(duì)河口沖刷槽研究的基礎(chǔ)上成年人啪啪视频无码，選擇長(zhǎng)江口南支超碰在线免费97、新橋水道美国黄色一片、南小泓和南港主槽作為典型漲、落潮槽研究對(duì)象在线欧美黄片，以2001年洪季和2003年枯季實(shí)測(cè)資料為根據(jù)A片欧美另类拳头交在线视，比較分析了長(zhǎng)江口漲落潮槽的水流、泥沙亚在线综合视频在线、優(yōu)勢(shì)流和優(yōu)勢(shì)沙等動(dòng)力特征欧美顶级性交，結(jié)果表明用單一因子分析河槽性質(zhì)不夠全面。

Results show that floes' VC and D at the surface water were closely related to current velocity; and the peaks of VC lag those of the current velocity. The lag variation during ebb and flood tides is 10-30min and 30-50 min, respectively. Current velocity at 50 cm/s is a turning point of D vs. vertical average current velocity, before the point, Dm increases with current velocity, and decreases after the point. Similarly, VC at 75μl/L becomes a critical point in the surface water, below the point, D increases with VC, and above the point, D stabilizes.Δp is D dependent, larger floes have much lower Δp than smaller floes. Both D and Δp of floes affect ω. In the surface water during spring tide and neap tide, a power exponent relationship exists between Δp and D, and ω and D.

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These Thoughts so oppress'd my Mind, that I began to give over my Enterprize, and having haled my Boat into a little Creek on the Shore, I stept out, and sat me down upon a little rising bit of Ground, very pensive and anxious, between Fear and Desire about my Voyage; when as I was musing, I could perceive that the Tide was turn'd, and the Flood come on, upon which my going was for so many Hours impracticable; upon this presently it occurr'd to me, that I should go up to the highest Piece of Ground I could find, and observe, if I could, how the Sets of the Tide, or Currents lay, when the Flood came in, that I might judge whether if I was driven one way out, I might not expect to be driven another way home, with the same Rapidness of the Currents: This Thought was no sooner in my Head, but I cast my Eye upon a little Hill, which sufficiently over-look'd the Sea both ways, and from whence I had a clear view of the Currents, or Sets of the Tide, and which way I was to guide my self in my Return; here I found, that as the Current of the Ebb set out close by the South Point of the Island; so the Current of the Flood set in close by the Shore of the North Side, and that I had nothing to do but to keep to the North of the Island in my Return, and I should do well enough.

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flood dam：防洪堤

flood current 漲潮流 | flood dam 防洪堤 | flood gate 閘門

flood dam：防洪攔壩,蓄洪壩

flood current ==> 洪流,漲潮流 | flood dam ==> 防洪攔壩,蓄洪壩 | flood damage ==> 洪水損失,洪災(zāi)

flood dam：防洪壩

flood current 漲潮流 | flood dam 防洪壩 | flood damage 水災(zāi)