陆地动物

The world's fastest land animal, the cheetah can reach speeds of more than 60 miles per hour.

他是世界上跑的最快的陆地动物，速度可以超过每小时60英里。

The cheetah is the fastest land animal, capable of reaching speeds up to 70 miles per hour.

猎豹是跑得最快的陆地动物，它奔跑的速度可达每小时70英里。

"It is almost always due to some very special circumstances that traces of land animals survive, as by falling into inaccessible cave s, or into an ice crevasse, like the Siberian mammoths, when the whole animal is sometimes preserved, as in a refrigerator."

几乎总是由于某种非常特殊的情况，使得陆地动物的遗骸得以保持下来，例如掉入难以到达的深洞，或者像西伯利亚猛犸那样掉入冰窟中，就像被放到冰箱里一样，完整地被保存下来。

"It is almost always due to some very special circumstances that traces of land animals survive, as by falling into inaccessible caves, or into an ice crevasse, like the Siberian mammoth s, when the whole animal is sometimes preserved, as in a refrigerator."

几乎总是由于某种非常特殊的情况，使得陆地动物的遗骸得以保持下来，例如掉入难以到达的深洞，或者像西伯利亚猛犸那样掉入冰窟中，就像被放到冰箱里一样，完整地被保存下来。

They decompose and are quickly destroyed by the weather or eaten by some other creature. It is almost always due to some very special circumstances that traces of land animals survive, as by falling into inaccessible caves, or into an ice crevasse, like the Siberian mammoths, when the whole animal is sometimes preserved, as in a refrigerator.

几乎总是由于某些特殊的条件，陆地动物的遗体才被存下来，如掉进难以到达的洞穴，或掉进冰河裂缝里，或者像西伯利亚长毛象那样掉进冰窟中，有时整个动物像被放在冰箱里一样被保存下来，著名的那林索夫卡长毛象就是这样被保存下来的，而且保存得很好。

Plastic bags create visual pollution problems and can have harmful effects on aquatic and terrestrial animals.

塑料袋造成的视觉污染问题，并可能对水生和陆地动物的有害影响。

New material indicates differing ontogenetic trajectories for their forelimbs: In Ichthyostega, the pattern of muscle attachment processes on small humeri resembles that in "fish" members of the tetrapod stem group such as Tiktaalik, whereas large humeri approach the tetrapod crown-group condition; in Acanthostega, both small and large humeri exhibit the crown-group pattern.

过去，研究人员相信Acanthostega是在化石记录中最像鱼的陆地动物，但这一有关Ichthyostega 迁徙前肢的新发现表明，Ichthyostega 应该在进化树上占有一个更基底的位置，而其它的种系（如Acanthostega）可能是从Ichthyostega 所进化而来，而非反过来的情景。

Reaching speeds up to 60 miles (96 kilometers) per hour, cheetahs are the fastest land animal.

延伸加快速度到60英里（96公里）每小时，猎豹是最快的陆地动物。

Scientists already knew that pinnipeds evolved from land animals. But the earliest known fossil from that group already had flippers.

科学家们已经知道鳍足动物是从陆地动物进化而来，但是鳍足动物的已知最早化石已经有了脚蹼。

Hawks that hunt over meadows and marshes and prey on small terrestrial animals.

陆地动物在草地和沼泽地带捕食的鹰，捕食小的陆地动物。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。