根据我的记忆，水往复地变化，从湖泊和海洋里的水变成水蒸气，然后当它以雨或雪——也就是降水的形式落下时又变成水。
From what I remember, water changes back and forth from water in lakes and oceans to vapor, and then back to water again when it falls as rain or snow, as precipitation.
这感觉糟糕极了，就像是绕着运动场循环往复地奔跑。
It does not feel good, and it is like running around the playground, circularly, constantly.
无极绳调度绞车是利用钢丝绳循环往复地牵引固定在钢丝绳上的车辆或其他装备前进，能有效解决矿井辅助运输问题。
The endless-rope dispatching winch tows the tram cars or other equipments which are fixed on cable wire to solve the problem of assistant conveyance of mines.
对于本文的目的而言，安全性一词涉及到，从一个客户机经过数量不定的中间机器到达最终目的地，在这一往复过程中对XML的保护。
For the purposes of this article, the term security covers the round-trip protection of XML between a client and a final destination through a variable number of intermediaries.
在悬崖攀越往复，直至我彻底地迷失，孤独。
目的为了合理地设计和优化混凝工艺，改善流场结构，提高混凝效果，并验证往复式隔板絮凝池的结构优化参数。
In this paper CFD technology is applied to numerically simulate the flow field of a reciprocating baffled flocculation tank to confirm the optimum configuration parameter.
活塞不断往复运动，泵的吸水与压水过程就连续不断地交替进行。
Continuously reciprocating piston movement, the pump suction and the pressurized water process is continuous alternately.
试验结果表明，利用BP网络可以有效地诊断与识别往复泵轴承多故障模式，并且具有很高的成功率。
The experimental results have proved that BP network can efficiently diagnose and distinguish the multi-faults of bearing in reciprocating pump, and the successful rate is high.
两部分都是建筑中所必需的支柱，结合在一起营造出循环往复的回馈，不懈地进行交流。
Both are necessary underpinnings of architecture, and together they create a feedback loop in which each constantly informs the other.
性能曲线可直观地反映往复泵运行工况及其特性，传统的绘制方法工作量大，且效率低。
The performance curves directly reflect the running status of reciprocating pump and its features; the traditional drawing method has the characteristics, a great deal of work and low efficiency.
该泵使用一个共同的驱动机构以使活塞轴向旋转且沿侧向往复运动以连续地泵送流体，同时减少脉动。
The pump utilizes one common driving mechanism to axially rotate and laterally reciprocate the piston to provide continuous pumping of fluids with reduced pulsations.
振动是往复式压缩机系统的一种常见故障，文章系统地介绍了其振动的产生、作用机理，以及分析计算方法。
Vibration is a frequent trouble of reciprocating compressor. This article systematically presents the vibration generation, action mechanism and anacom method.
识别结果表明，该方法克服了传统方法在故障特征提取和识别上的局限性，能够有效地识别出往复压缩机的各种故障。
The identification result shows that this method surmounts localization of traditional method, and could identify kinds of compressor fault exactly.
识别结果表明，该方法克服了传统方法在故障特征提取和识别上的局限性，能够有效地识别出往复压缩机的各种故障。
The identification result shows that this method surmounts localization of traditional method, and could identify kinds of compressor fault exactly.
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