Fan coil air outlet and the air return are not at the same level (such as when the outlet for side inlet and outlet for the last time), air inlet and the air return distance can be relatively close.

风机盘管的送风口与回风口不在同一水平面时(如送风口为上侧送、回风口为上回)，送风口与回风口距离可相对近一些。

youdao

Ebb-tide delta: an accretionary deposit of sand found on the seaward side of an inlet and usually formed by tidal currents.

UNESCO: L O S S A R Y

Flood-tide delta: accretionary deposit of sand found on the bay or river side of an inlet and usually formed by tidal currents.

UNESCO: L O S S A R Y

Bypassing: movement of sand from the accreting updrift side of a structure, inlet or harbour entrance to the eroding downdrift side.

UNESCO: L O S S A R Y