前面已经提到，风味包括口味和气味，非常具有主观色彩，因此难以测量。

As noted already, flavor is a combination of both taste and smell and is largely subjective and therefore hard to measure.

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风味和气味通常都是非常主观的，难以精确测量，而且也很难让一群人达成共识。

Flavor and aroma are often subjective, difficult to measure accurately, and difficult to get a group of people to AGREE.

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分析机器人依靠传感器通过测量地表土壤中气味浓度搜索地下气味源的定步长六边形路径算法的不足，对其进行改进。

This paper analyzed the disadvantages of the traditional algorithm of hex-path odor searching algorithm, which can guide a mobile robot with single gas sensor to search for underground odor source.

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