In case it is necessary to prohibit or delay a ship's entry into or departure from the port, the action must be taken through the Harbour Bureau.

如果有特殊事故，需要禁止或者延缓船舶进出口，必须通过港务管理机关执行。

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The protocol reaffirmed the precautionary principle, that permits contracting parties to prohibit or limit the entry of LMO, and the shipments containing LMO are to be clearly labeled.

该《议定书》确认了预先防范原则，允许缔约方禁止或限制LMO进境，并要求含有LMO的货物附有标签。

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But to tell the truth, those limits are not apparent to us, either because the power to require the entry into commerce is symmetrical with the power to prohibit or condition commercial behavior, or because we have not yet perceived a qualitative limitation.

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