Conclusion Nasal bowel operation simple, tube feeding and retention time, fewer complications, the length of the method is effective and economical.
结论鼻肠管操作及护理简便、管饲保留时间长、并发症少、为有效且经济的方法。
In the case of constant pipe diameter, lengthening the length of vacuum tube is an effective way to increase the total heat of solar water heater!
在管径恒定的情况下,加长真空管的长度是增加太阳能热水器总得热量的有效途径和方向!
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