合成脂肪族聚酯二醇的合成及二羧酸经缩合聚合，和已知的完全生物降解土壤和水。
Synthetic aliphatic polyesters are synthesised from diols and dicarboxylic acids via condensation polymerisation, and are known to be completely biodegradable in soil and water.
因此，蒙古族北斗七星神话是在本民族神话文化的土壤里生长起来的。
Thus, Mongolian stories of the Big Dipper grew up from the soil of Mongolian myths.
因此，蒙古族北斗七星神话是在本民族神话文化的土壤里生长起来的。
Thus, Mongolian stories of the Big Dipper grew up from the soil of Mongolian myths.
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