Development of these work is of benefit to raising quality of gold wire ball bonding.
这些工作的开展有利于提高金丝球焊的焊接质量。
An ounce of gold can also be strethced into a wire 50 miles long .
一盎司金也可以被锻铸成一根50英里长的金属线。
So ductile is gold that it can be drawn out into a fine wire.
金子延性极好，可以把它拉成细丝。 收藏。
So ductile is gold that it can BE drawn out into a fine wire.
金子延性极好，可以把它拉成细丝。
So ductile is gold that it can BE drawn out into a fine wire.
金子延性极好，可以把它拉成细丝。
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