脱掉海水里的盐分是个复杂的过程.用英语怎么说？

脱掉海水里的盐分是个复杂的过程.

It's a complicated process to desalt seawater.

complicated

adj. 结构复杂的，混乱的，麻烦的；v. 使复杂化( complicate的过去式)；

例句
The text is approachable, coping well with quite complicated subjects.
这篇课文把相当复杂的主题讲述得深入浅出、通俗易懂。

process

n. 过程，工序，做事方法，工艺流程；vt. 加工，处理，审阅，审核；vi. 列队行进；

例句
Once you have registered your particulars with an agency and it has banked your cheque, the process begins.
一旦在某个代理行登记了详细信息并由它将支票存入银行，这一程序就开始了。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

desalt

vt. 除去盐分，脱盐；

例句
In the process of managing, we should desalt parent company's profit. "
在管理过程中, 要尽量淡化母公司的利益.

seawater

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例句
As a result , austenitic stainless steels are inapplicable in seawater environment.
故奥氏体不锈钢不适用于海水环境.