英语语法分析

We determine carbinol in air with Chromotropic acid spectrophotometry, and found developing temperature and developing time exist certain linear relation.

选用变色酸分光光度法测定大气中甲醇，显色温度与显色时间有着一定的线性关系。

Physical method, including thermal evaporation and magnetic sputtering, and chemical coating method are applied to prepare organic-inorganic composite chromotropic film.

用热蒸发和磁控溅射的物理镀膜方法和溶胶凝胶化学涂布的方法相结合制备了有机和无机复合纳米光学变色薄膜。

In this paper, the development of using bi azo chromotropic acids as chromogenic reagents in re determination was reviewed, especially the new reagents introduced after 1990.

介绍1990年以来变色酸双偶氮显色剂在稀土分析中应用的进展，着重介绍了新出现的显色剂。