英语语法分析

By comparison with different seaweeds, Phaeophyta is much higher in total amount of fatty acids and unsaturated fatty acids than Rhodophyta and Chlorophyta.

按分类比较，褐藻门海藻的脂肪酸总量及不饱和脂肪酸的含量都较高，而红藻门、绿藻门海藻的脂肪酸含量较低。