下傾(角), 下沉

Channel is the main sediment conduit and deposition area.From updip to downdip area, the sinuosity of channel increases and the flow energy decreases. 深水河道是物源的主要通道和沉積的重要場(chǎng)所，從上游至下游河道彎曲度增加，能量逐漸減弱。

In addition, it is a principle to follow that the formation thickness of upfaulted block is greater than or equal to the downdip block in correlation of subzones as facing faults. 此外，遇到斷層時(shí)，通常遵循正斷層下降盤(pán)小層厚度應(yīng)該等于或者大于上升盤(pán)小層厚度的原則。

Keywords first roof weighting pace;periodic roof weighting pace;updip mining;downdip mining; 初次來(lái)壓步距;周期來(lái)壓步距;仰斜開(kāi)采;俯斜開(kāi)采;

downdip block 下傾斷塊