不可缺少的

The right nutrition is an important factor in the health and happiness of your bunny.

除了一定要提供所知的新鲜禾科草类作为主要饮食，低钙的蔬菜也是不可缺少的。蔬菜的重要性和量应该大于加工过的兔粮。

Chinese abstract: The coating is the various branches and sectors of anational economy essential necessary material, widely applies to eachkind of building, each industry product (for example airplane, rocket,orbiting vehicle, automobile, ships, mechanical electron and lightindustry electrical appliances and so on) decoration protection aswell as each kind of steel and iron facility (for example wharf, seapetroleum oil drilling platform, petroleum chemical industryequipment, conduit, power transformer tower and bridge and so on)anticorrosion protection.

请高手帮我把论文摘要翻译成英文的，谢谢了！！中文摘要：涂料是国民经济各部门不可缺少的配套材料，广泛应用于各类建筑物、各种工业制品（如飞机、火箭、人造卫星、汽车、船舶、机械电子和轻工家电等）的装饰保护以及各类钢铁设施（如码头、海洋石油钻井平台、石油化工装备、输送管道、输变电塔和桥梁等）的防腐保护。

It is certain that self-responsibility is a basic requirement for a persons quality in future society, the basis of a sane personality. Its cultivation is regarded as a necessary task of quality education.

自我责任心是未来社会对人才素质的一项基本要求，是一个人健全人格的基础，它的培养是素质教育不可缺少的重要内容。

In order to promote a new viewpoint for urban landscape design and to enrich the design methods, the concept of soundscape was introduced.

景观设计从早期的风景设计到现在的城市环境设计，在人类的物质生活和精神生活中一直都是不可缺少的。

Any document trasacted by your company should be printed by your company's stamper or signed by the artificial person of your company for this is essential condition for your company's participation.

通过贵司办理的文件须有贵司印章或贵司法定代表人的签字，这是承认贵司的介入不可缺少的条件。

The drum is said to be one of the world's oldest known musical instruments, and the Japanese "Taiko" is no exception, having played an important role throughout Japanese tradition as an indispensable item in divine ceremonies and battles.

鼓，是世界上最老的乐器之一，而日本太鼓就是其中一种，它在日本的传统文化中扮演着重要的角色。在神圣的仪式和战争中都是不可缺少的乐器。

It shows characteristics of the Medical Thermography as a functional medical image device, and introduces the history, status in quo and direction of its application in China.

特别是像CT、MRI那样的医学影像设备，给医院的临床诊断带来了革命性的变化，成为医疗业务中不可缺少的重要手段。

THERE are numerous time-honoured stories which have become so incorporated into the literature and thought of our race that a knowledge of them is an indispensable part of one's education.

许多历史悠久的故事已经融入了文学和我们民族的思想，有关这些故事的知识是人类教育中不可缺少的部分。

It has steady composition, and it is known to the world that it is ery suitable for electrosmelting of steel . it is not only used as the replacer of scrap but also act as the tinner in electrosmelting of steel.

摘 要： DRI又称海绵铁，它的成份稳定，是国内外公认的优质电炉钢炉料，不仅可以作为废钢的代用品，而且是生产优质钢不可缺少的稀释剂。

DRI is the short name of Direct reduced iron . it has steady composition, and it is known to the world that it is very suitable for electrosmelting of steel . it is not only used as the replacer of scrap but also act as the tinner in electrosmelting of steel.

摘 要： DRI又称海绵铁，它的成份稳定，是国内外公认的优质电炉钢炉料，不仅可以作为废钢的代用品，而且是生产优质钢不可缺少的稀释剂。

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。