循环地

It turns out that all these problems can be solved at once, provided we learn enough about the cycle structure of permutations

结果是，所有这些问题都可以一次解决，只要我们充分地了解各置换的循环结构。

Only when a system possesses natural or artificial boundaries that associate the water within it with the hydrologic cycle may the entire system properly be termed hydrogeologic.

只有当某一地质系统拥有自然的或人工的界限，将该系统内的水与水文循环起来，这整个系统方能被恰当地称为与水文地质学相关。

Only when a system possesses natural or artificial boundaries that associate the water within it with the hydrologic cycle may the entire system properly be termed hydrogeologic.

只有当某一地质系统拥有自然的或人工的界限，将该系统内的水与水文循环起来，这整个系统方能被恰当地称为与水文地质学。

Using abstract programming language, such as Apia, the specification and derivation of the algorithmic program in six typical trees, graph problem is described. The standard proof and formal derivation is implemented by two above new strategies for developing loop invariants. The algorithm in Apia is transformed into corresponding program in Delphi and C++ by the automated algorithmic transformation system that Partition-and-Recur method provided and correct result is received. These improve reliability and developing efficiency of the kind of complex algorithm.

利用抽象程序设计语言Apla精确描述了6个典型树、图等问题的程序规约和求解算法程序，用上述提出的两种新策略开发了循环不变式，实现了严格的形式化推导或证明，并用PAR方法提供的算法程序自动转换系统将得到的Apla算法程序转换成对应的Delphi和C~程序，均得到了正确的运行结果，大幅度地提高了这类复杂算法程序的可靠性和开发效率。

A series of iron proxies have been suggested to distinguish the redox condition of the paleoocean, by studying iron cycling in the modern ocean. On the basis of this methodology, scientists have reconstructed the redox history of paleoocean since the Archaean as a sequential appearance of the ferrous, sulfidic and oxic ocean.

Raiswell、Canfield、Poulton等通过对现代典型海洋环境活性铁循环研究，提出了一系列用于判别古海洋氧化还原条件的活性铁指标体系，并成功地将太古宙以来的古海洋划分成为含铁的大洋、硫化的大洋和氧化的大洋等3个演化阶段。

The results showed that the IVCW effectively removed total suspended solids(85%),chemical oxygen demand(50%),five-day biochemical oxygen demand(44%),total ammonia(53%),nitrite(83%) and nitrate(54%) from the aquaculture wastewater at a hydraulic loading rate of 420mm/d.

结果表明，在420 mm/d的水力负荷下，湿地可有效地去除循环水中的总悬浮物(去除率85%)、CODCr(去除率50%)、BOD5(去除率44%)、总氨氮(去除率53%)、亚硝酸盐(去除率83%)和硝酸盐(去除率54%)，能够满足养殖用水的要求，整个试验期间系统实现了零污水排放。

The results showed that the IVCW effectively removed total suspended solids (85%), chemical oxygen demand (50%), 5-day biochemical oxygen demand (44%), total ammonia (53%), nitrite (83%) and nitrate (54%) from the aquaculture wastewater at a hydraulic loading rate of 420mm/d.

结果表明，在420mm/d的水力负荷下，湿地可有效地去除循环水中的总悬浮物(去除率85%)、CODCr(去除率50%)、BOD5(去除率44%)、总氨氮(去除率53%)、亚硝酸盐(去除率83%)和硝酸盐(去除率54%)，能够满足养殖用水的要求，整个试验期间系统实现了零污水排放。

Homas Demand used it for an installation at the Kunsthaus Bregenz (2004), where he created a large curtain from floor to ceiling, sliding along a spiral track to create a dark and protected temporary space in which to screen his films at 12-minute intervals.

HOMASDEMAND就用它制作了一个装置，并在KUNSTHAUS BREGENZ（2004）展出，在展览中他制作了一个从天花板垂至地面的巨大窗帘，可沿螺旋轨道滑行，从而创造出一个临时的漆黑空间，在里面循环播放自己的电影（间隔为12分钟）。

While the connections with the cycle of the seasons is obvious, it is also clear that the story of Ishtar and Dumuzi was enacted by monarchs to ensure the fertility of the land.

很明显是与季节循环的变换相关，也明显地看出，伊斯塔和杜穆兹的故事是由君主扮演的，用来确保土地的肥沃。

While the connections with the cycle of the seasons is obvious, it is also clear that the story of Ishtar and Dumuzi was enacted by monarchs to ensure the fertility of the land.

很明显是同季节循环的变换相关，也明显地看出，伊斯塔和杜穆兹的故事是由君主扮演的，用来确保土地的肥沃。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。