Delta 4型重型运载火箭是Delta系列中最庞大的，它配备了三支火箭推进器，而一般型号只有一支。

The Delta IV Heavy is the largest of the Delta series, packing the punch of three rocket boosters instead of the usual one.

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带着小孩出门旅行的家长们一般都喜欢自己选择合适的酒店，而奢华级家庭友好型酒店其实就是一个不错的选择。

Families with young children often opt for self-catering accommodation when planning a vacation but choosing family-friendly luxury hotels could be a better way to go.

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一般砂岩的连续性特征尺度在厘米量级，而溶洞型碳酸盐岩的连续性特征尺度在米量级。

The characteristic scale of continuity for sandstones is generally centimeter-scale, while that for cavern carbonates is meter-scale.

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