The full name of the polyurethane is the poly - urethane, which is a general designation of the macromolecular compound containing repeated amino acid ester groups.
聚氨酯全称为聚氨基甲酸酯，是主链上含有重复氨基甲酸酯基团的大分子化合物的统称。
The October full moon enjoys the Harvest moon designation, because it comes 12 calendar days after the September 22 equinox.
十月的满月之所以冠上丰收之月的头衔，因为在9月22日秋分之后的12天满月了。
The October full moon enjoys the Harvest moon designation, because it comes 12 calendar days after the September 22 equinox.
十月的满月之所以冠上丰收之月的头衔，因为在9月22日秋分之后的12天满月了。
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