These are containers built to other than DOT specifications but are authorized by the DOT for use in the transport of approved products.
这些容器的制造不必遵守DOT规范，只是得到了DOT的用于运输已核准产品的授权。
These are containers built to other than DOT specifications but are authorized by the DOT for use in the transport of approved products.
这些容器的制造不必遵守DOT规范，只是得到了DOT的用于运输已核准产品的授权。
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