in which 中的which指什么?
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in which 中的which指什么?
a pump had come into use in which expanding steam raised a piston in a cylinder,and atmospheric pressure brought it down again when the steam condensed inside the cylinder to form a vacuum.
a pump had come into use in which expanding steam raised a piston in a cylinder,and atmospheric pressure brought it down again when the steam condensed inside the cylinder to form a vacuum.
which应该指a pump,
这句话的意思是:有种泵被投入使用,在它内部,膨胀的蒸汽把气缸里的活塞推起来,然后当蒸汽在气缸里凝结成水的时候会形成真空,这样外部的气压会把活塞压回去.
这句话的意思是:有种泵被投入使用,在它内部,膨胀的蒸汽把气缸里的活塞推起来,然后当蒸汽在气缸里凝结成水的时候会形成真空,这样外部的气压会把活塞压回去.
请问这句英语中的in which代指什么?
这句话中in which中的which 是不是指speech?
which和in which有什么区别?
in which和for which 等于什么
on which ,in which,for which等于什么?
请问从句中的in which
句中的which指代什么?
in which 引导什么句子
in which与on which在定语从句中的区别
in which
which,in which,on which,for which ,of which 有什么区别,在定语从句中怎么用
which,in which,on which,for which ,of which 有什么区别,在定语从句中怎么用?