请注意它的正面是阳面而西面是阴面。

Notice the face is lighted and the western side is dark.

上海海通大厦阴面悬挂着美的最新产品 -强力电扇的大幅广告宣传画，这个创意很是聪明新颖。

Clever advertisement was placed behind Shanghai Haitong building to promote new powerful electric fan by Midea. [link]

在直立枝条上，紫胶蚧呈环状带分布，在多数倾斜枝条上，紫胶蚧分布在背阴面。

On erect branches, lac insects distributed around the branch, but on most decline branches, lac insects only settled on shaded parts.