Corrosion resistant ss fluid passages, air Control Valve in Ergonomic handle, with new MAXIMUM DELIVERY air nozzles.

耐腐蚀不锈钢流体通道，空气控制阀在人体工程学手柄，最大的传送与新空气喷嘴在行业后面。

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After the message is rolled back to the destination, the underlying system redelivers the message based on the destination's maximum failed delivery setting.

将消息回滚到目的地后，基础系统基于目的地的最大失败提交次数设置重新提交消息。

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Subscribers can specify a maximum QoS for delivery of messages on a per-topic basis, so a message published at QoS 2 May not be delivered to its subscribers at that level.

订阅者可以基于每个主题指定消息传递的最大QoS，所以若消息在QoS 2发布，此消息有可能不是在该级别发布给其订阅者。

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"DFID needs to do more and to take a tougher, clearer stance on the importance of cost and service performance information, and in particular indicators of education delivery and attainment if it is to make sure its contributions achieve the maximum good effect, " he said.

BBC: UK aid for foreign schools 'gets disappointing results'