它是纯对称的积；因此，它是完全可交换的。
It is the purely symmetric product; therefore, it is completely commutative.
但它并不能交易给第三方，也就不完全是种可交换的资产。
But it cannot be traded to third parties, and it is not entirely fungible.
因此，可交换债券的发行，以平衡这一困难局面。
Therefore, the issue of exchangeable bonds to balance this difficult situation.
除镉外，各元素生物可用性最高的可交换态含量普遍较低。
Except for Cd, the content of the exchangeable species is generally lower.
除镉外，各元素生物可用性最高的可交换态含量普遍较低。
Except for Cd, the content of the exchangeable species is generally lower.
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