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.
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inwhich中的which指什么?apumphadcomeintouseinwhichexpandingsteamraisedapistoninacylinder,andatmosphericpre
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.
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.
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.
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.
in which等于什么?
on which by which with which in whichon which by which with which in which 都是什么意思有什么区别
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in which与on which在定语从句中的区别
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.
in which
in which
in+which等于什么for+which等于什么?
which,in which,on which,for which ,of which 有什么区别,在定语从句中怎么用
in which 在宾语从句中的用法?
what are the two different ways in which snake poison acts which指什么
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in which=where,那什么which等于when?还有什么of which=什么?