In 1956 he had the idea of using a bed of molten metal to form the flat glass,eliminating altogether the need for rollers within the float bath. 求大虾解答'''''''' 逗号后面是不是现在分词作状语？如果是'''eliminating的主语是不是he？因为分词作状语的主语要与主句一致啊'''''但看了半天我总觉得它主语是molten metal ''''求大虾解释''''''。 然后就是'''''using a bed of molten metal to form the flat glass在主句中作什么成份啊？谢谢解答！！
额''''''''到底下面俩答案谁对啊'''''我感觉一楼是对的
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using a bed of...这部分是宾语 idea 的补足语.
...我觉得张达人比较靠谱
