自然地

Zhan has determined the maximum and minimum numbers of positive entries of imprimitive irreducible nonnegative matrices with a given imprimitivity index. In this paper, we prove that if a positive integer is between the maximum and minimum numbers, then there exists an irreducible nonnegative matrix A with the given imprimitivity index and with the given number of positive entries.

非负矩阵是矩阵论中研究比较活跃的领域，不可约非负矩阵是比较重要的非负矩阵，本文分两部分，一部分主要在詹兴致教授的研究基础上研究了给定非本原性指标的不可约非负矩阵中非零元个数的连续性，肯定地回答了詹兴致提出的一个自然的问题。

This fact has led naturalists to believe that the Isthmus was formerly open.

使许多自然学者相信这个地蛱在以前原是开通的。

This pourquoi cum cautionary tale maintains that "in the bare bones beginning, Armadillo's ears were as tall as a jackrabbit's."

拥有这样一双绝妙的耳朵，犰狳自然不能浪费，所以他特别喜欢偷听其它动物的谈话，然后再添油加醋地到处乱讲。

Jut Be Yourself', that is to say to show your instinct and urge.

"自由地成为我自己"，牛仔的气质体现与自然，体现生命的原动力。

Jut Be Yourself', that is to say to show your natural instinct and urge.

"自由地成为我自己"，牛仔的气质体现本能与自然，体现生命的原动力。

Surrounded by the trees and grasses, the sculpture named the "first kiss" is full of life, feeling the quietness and the pure beauty of the shades.

夜色在这里可以更加宁静，尽管没有繁星，在树与草的绿色包围下，名叫" first kiss "的雕塑在真实地感觉着夜色的寂静与纯美，男孩与女孩自然舒展的缠绵，只属于宁静的夜色下心跳的感动。

Senior bowlers who are unable to exercise deep knee bends and perform stiff legged are merely products of Mother Nature.

长青级的球员，由於腿部的僵化，无法充份地作出曲膝的动作是勉强不得的自然现象。

Your landscaper will also help you visualize how various arrangements will fit into the natural topology of your property.

您的庭园设计也将帮助您直观地了解各种安排，将适合您的财产自然拓扑。

It should be in this industry inside contribute somewhat, in the technology development respect wants to be contributed somewhat, should assume case " great " these two words, it has nature quite large scale, continuously profit grows, give partner good get one's own back, give employee very good platform and very good material drive, want not let sb down whole society, this ability deserve to be called a great company.

它应该在这个行业里边有所贡献，在技术发展方面要有所贡献，要承担得起"伟大"这两个字，自然它有相当大的规模，持续地利润增长，给股东好的回报，给员工很好的平台和很好的物质激励，要对得起整个社会，这才称得起一家伟大的公司。

The plan and implementing procedure of air supply for the gate lintel of water transmission valves used in No.

阐述了葛洲坝1、2号船闸输水阀门门楣处加设负压板及补气系统的方案与实践，利用负压实现门楣自然补气，有效地减免了门楣等处的空化、声振及其造成的危害。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。