Reasonable use of prophylactic analgesics of sufficient dosage postoperatively relieves pain and enhances life quality. 术后及时准确足量地预防性使用止痛药，可大大减轻患者的痛苦。
Within states using a riparian system to control consumptive uses, water diversion by a riparian landowner historically was restricted to domestic use. 通过河岸所有权制度可以在各州内控制各种对水进行损耗性使用的行为。
