And in the chemical control, the potential application of Chitosan in prevention of heavy metal pollution in Marine sediments was introduced in detail.
化学治理技术中，较详细介绍了壳聚糖在治理海洋沉积物中重金属污染的潜在应用价值。
A control ties system which can control the technical parameters invariably in chemical production is introduced. The principle and its applied potential are also outlined.
叙述了在实际化工生产中，利用串级调节等方法来实现工艺参数准恒定控制的控制方案，并对其工作原理及性能作了阐述。
A control ties system which can control the technical parameters invariably in chemical production is introduced. The principle and its applied potential are also outlined.
叙述了在实际化工生产中，利用串级调节等方法来实现工艺参数准恒定控制的控制方案，并对其工作原理及性能作了阐述。
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