The last two methods, element and peek , are for querying the element at the head of the queue.
后两个方法element和peek用于在队列的头部查询元素。
The last two methods were sensible for there simple industrial art, moderate operating condition and high yield.
其中后两种方法工艺简单、操作条件温和且产物收率高 ，是较合理的合成路线。
The last two methods have enhanced the application rate of the existing log data, and obtained better result in evaluation of sand-conglomerate reservoir in Kenxi area.
该方法提高了现有测井信息的利用率，在垦西地区砂砾岩体应用中取得了良好的效果。
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