This means that our noses are limited to perceiving those smells whichfloat through the air, missing the majority of smells which stick tosurfaces.
这就意味着我们的鼻子只限于感知到漂浮在空气中的气味,遗漏了连附在物体表面的大多数气味。
句子的主干是This means that.... That引导宾语从句。宾语从句的主干是ournoses are limited to perceiving those smells,which引导定语从句,修饰those smells,现在分词短语missing...surfaces作结果状语,其中又嵌套了一个which引导的定语从句,此处修饰the majority ofsmells。
Perceive:v.感觉、感知
近:observe:观察
Float:v.漂浮
the majority of:大多数