请帮忙分析这个句子!It is held there by the force of surface tension without which water would drain instantly from any wet surface,leaving it total ly dry请教这个句子的结构,顺带翻译,最好能详细讲解一下without which 这两个词在句中的作用与成分,
问题描述：
请帮忙分析这个句子!
It is held there by the force of surface tension without which water would drain instantly from any wet surface,leaving it total ly dry
请教这个句子的结构,顺带翻译,最好能详细讲解一下without which 这两个词在句中的作用与成分,
答
It is held there by the force of surface tension主句：它依靠表面张力的作用聚集在那，后面 without which 引导定语从句，修饰先行词surface tension。意思是，没有表面张力水就会沿着任意潮湿的表面立即流下来，而接触面不会留有水。
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答
without which是介词加which的定语从句啊。它指待前面的the force of surface tension
答
它被表面张力所支撑着,而水从任何湿润的表面耗干一直到完全干燥,是不需要表面张力的.
It is held there by the force of surface tension 主句
without which water would drain instantly from any wet surface 定语从句
先行词是 the force of surface tension ,准确来说是 the force