英语语法分析

Does the factory have Spectrophotometer to evaluate colors?

工厂有读色仪测试颜色吗?。

The simulative labeling yield was tested by UV-spectrophotometer and calculated as 80.4%.

采用紫外分光光度计测试吸光度并计算出模拟标记率达80.4%。

First contender: a beach umbrella, which they evaluated with a spectrophotometer to see if UV rays passed through.

第一个竞争者：一把遮阳伞，他们用分光光度计来评估紫外线是否通过。