Contract
This campaign is limited per day and is going to be delivered evenly until the end date or specified limit is met
合约型：在预定的时间和显示次数内投放
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Contract (Exclusive)
why is it disabled? [x]
You cannot change this campaign to Remnant or Exclusive, since both an end date and either of impressions/clicks/conversions limit are set. In order to change type, you need to set no expiry date or remove limits.
This campaign is going to take all impressions and be delivered before other campaigns
合约型：将会占用所有的显示资源，并且优先级高于所有其他广告计划。
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Remnant
why is it disabled? [x]
You cannot change this campaign to Remnant or Exclusive, since both an end date and either of impressions/clicks/conversions limit are set. In order to change type, you need to set no expiry date or remove limits.
This is a standard campaign which can be constrained with either an end date or a specific limit
剩余抄底：可以基于特殊的投放限制及时期来进行投放。