Selecting the primary option installs a primary node and creates a cluster.

选择主选项会安装一个主节点并创建一个集群。

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At present, a tunnel scheme has become a primary option of a long-distance oil-gas pipeline through mountains.

目前，隧道方案已经成为长距离油气管道通过山区的一个主选方案。

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Using the automatic option requires you to specify primary archive log path and fail archive log path.

使用自动选项时要求指定主存档日志路径和故障转移存档日志路径。

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Congress faced strong pressure to boost the debt-ridden flood insurance program, which is the primary option for that type of coverage for U.S. homeowners and businesses.

CNN: Congress approves scaled-back Sandy aid bill

However, given the work that we have done at the plant in Delaware and the fact that we own it, it is still our primary option to consider.

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In the United States, 40 of these advanced imaging machines are in use in 19 airports, according to the TSA. Only in six airports are they used as a primary screening option.

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