当然，令这一发现如此不寻常的部分原因是天球仪由铜构成。

Of course part of what made this find so unusual is that the Antikythera Mechanism is constructed of bronze.

youdao

当然，令这一发现如此不寻常的部分原因是天球仪由铜构成。

Of course part of what made this find so unusual is that the Antikythera Mechanism is constructed of bronze.

youdao