BlockingQueue接口表示它是一个Queue，意思是它的项以先入先出(FIFO)顺序存储。

The BlockingQueue interface states that it is a Queue, meaning that its items are stored in first in, first out (FIFO) order.

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本文结合实例介绍了交叉试验的计量与计数资料的统计方法。先比较两个顺序组每例的疗效和，以检验两种疗法残余效应的差别。

The inference concerning a difference between the two carry-over effects may be tested by comparing the intrasubject sums of patients in the A-B sequence with that in the B-A sequence.

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在地表上以先左右后上下的顺序移动晶面机，研磨直到地表光亮，每次操作区域 3 5 平米。

Move the crystallizing machine onto the surface, first move left and right then move up and down. Polish until the floor becomes glossy and lustrous. Each operation covers about 3~5 square meters.

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