...improved by his partner Thomas Newcomen，embodi...

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for which it had been designed 是修饰the coal mines的定语从句.试着把介词for放到定语从句的末尾理解一下?

即:...it could not be employed outside the coal mines it had been designed for

还可以把原句拆分为两句来理解;

.it could not be employed outside the coal mines.it had been designed for the coal mines.

其他类似问题

问题1：非限制性定语从句中“.,which.”这样的结构中的which所指代的一定是前面整个句子吗?或者也可以是指代前面句子中的某一成分?[英语科目]

非限制性定语从句which可以指代前面整个句子,也可以指代某一成分

My house,which I bought last year,has a lovely garden.

我去年买的那套房子有一个漂亮的花园.(先行词 my house )

The weather turned out to be very good,which was more than I had expected.

天气变好了,这出乎我的意料.（将整个主句作为先行词）

问题2：这句话的for which 看不懂Children of immigrants would also especially benefit from a larger participation in kindergarten before the age of four,the age-range for which provides strong disincentives to send children into early childhood educati[英语科目]

这句话其实是介词+关系词引导的定于从句,是定于从句复杂的一种.这里which指代的先行词the age-range 年龄段,因为是定于从句,主语就是先行词which,你会问for怎么回事,这是因为本句先行词在后面的从句中作介词的宾语,只是这儿吧介词提前了,原句的语序为Children of immigrants would also especially benefit from a larger participation in kindergarten before the age of four,the age-range which provides strong disincentives to send children into early childhood educational institutes for (the age-range)注意括号里就是which代的部分 .

问题3：which是做定语从句吗,是修饰哪个的?另帮我分析这个句子的结构主、谓、宾we have seen the development of the user-friendly home computers and multimedia machines which are in common use today.[英语科目]

which是做定语从句,是修饰 home computers and multimedia machines

we主

have seen 谓

the development of the user-friendly home computers and multimedia machines 宾

问题4：that 和which能连用吗?下面这个句子是什么结构?The country has achieved in thirty years that which many Western countries have taken 150 years to do.

这个句子是一个由which引导定语从句,先行词that在这里是指示代词,做achieve的宾语,in thirty years 是achieve的时间状语.

这个that如果换成all做宾语,这样就更好理解句子结构了,这样定语从句就要用that来引导：The country has achieved in thirty years all that many Western countries have taken 150 years to do.

如果换个句型表达应该是：The country has achieved in thirty years what many Western countries have taken 150 years to do.这样就成了what引导的名词性从句做宾语从句了.

问题5：英语翻译This is the normal vernacular 'species',the category 'cat' of which all individual cats are members,and which excludes all other creatures.[英语科目]

the category 'cat' of which all individual cats are members= the category 'cat' which all individual cats are members of,which 在定语从句中作of 的宾语,which用来指先行词the category 'cat' ,而 the category 'cat'又是 the normal vernacular 'species'的同位语.