This papar is concerned with the technique of regaining L-GA from exhausted liquid extracted L-GAwith strong acid cation-exchange resin and eluting, regenerating resin with ammonia water.

用强酸性阳离子交换树脂吸附提取母液中的L-谷氨酸（简称L-GA），然后用氨水洗脱和再生，回收L-GA。

Supplies are exhausted, no food or liquid consumed for over 24 hours.

供给已经枯竭，已超过24小时找不到任何食物或水。

Water or air inside the blood chamber is exhausted with air pump, liquid pump and negative pressure pump.

排出血液室内水或气的方法包括用气泵，液泵和负压泵。