For a column family, different rows in the table can have a different number of members.

对于一个列族，表中的不同行可以拥有不同数量的成员。

youdao

Each column family can have an arbitrary number of members identified by labels (or qualifiers).

每个列族可以拥有任意数量的成员，它们通过标签(或修饰符)识别。

youdao

Compute the centroid, which is the average of each column of data using only the members of each cluster.

计算重心，即只使用每个群集的数的每列数据的平均数。

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Rank the remaining tasks by order of importance, and assign all but the top one in each column to your team members.

FORBES: To-do #1: Kill your to-do list

Were it to call its members to a higher standard of responsibility with a complementary column called, say, "The Armed Bonehead, " it would reach millions more people than either Mr. Farago or TrainMeAZ.

WSJ: Why Our Gun Debate Is Off Target