Objective To observe the effect of pain control by epidural anesthesia (PCEA) after cesarean section on parturient colostrum and intestine exhaust.
目的观察剖宫产术后使用硬膜外麻醉自控镇痛（PCEA）对产妇初乳分泌及肠排气的影响。
The calculation model of the environmental traffic capacity about highway section is put forward through utilizing the box model of vehicle exhaust gas in this paper.
本文运用机动车尾气扩散箱型模式建立路段环境交通容量计算模型。
To solve the problem existing in charge work section, and exhaust the leakage in management, this system provides the oil machine's data automatic collection function.
为了解决加油站在加油收费环节中存在的各种问题，杜绝管理上存在的漏洞，本系统提供了加油数据自动采集功能。
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