Unmarried mother, pregn an cy at an early age, or first pregn an cy.
未婚妈妈，产妇年纪太轻，或者是首次怀孕。
To shorten the processing time, the surfactant producing strain CY-5 was compounded with strain CY-47 to oil removal experiment.
为缩短处理时间，故将表面活性剂产生菌cy - 5与菌cy - 47进行联合除油实验。
To shorten the processing time, the surfactant producing strain CY-5 was compounded with strain CY-47 to oil removal experiment.
为缩短处理时间，故将表面活性剂产生菌cy - 5与菌cy - 47进行联合除油实验。
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