按灌液方法可分为美国系统(AmericanSystem)和荷兰系统(NetherlandSystem),后者又称菲利普系统,是以荷兰发明者菲利普名字命名的。两者都以砂砾作为基质,由栽培床、储液罐、电泵和管道等几个部分组成。
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宜家商标和概念由国际宜家系统,另一家私人荷兰公司所有。
The IKEA trademark and concept is owned by Inter IKEA Systems, another private Dutch company.
这篇论文称“我们的发现支撑了之前英国及荷兰所得出的结论并且指出了目前的毒品分类系统对其危害性并没有提出有力证据的弊端。”
"Our findings lend support to previous work in the UK and the Netherlands, confirming that the present drug classification systems have little relation to the evidence of harm," the paper says.
目前他们研制的风叶和传动系统分别在荷兰和挪威接受测试。
The blades are now being tested in the Netherlands, and the drivetrain in Norway.
So, what I want to do is, I want to discuss the scientific notion of language, at first restricting myself to systems like English and Dutch and American sign language and Navajo and so on.
因此,我想做的是,我想来谈谈语言的科学定义,首先我会将自己限定在,诸如英语,荷兰语,美国手语,或迪瓦霍语等语言系统之下
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