不可缺少

Water is a natural resource which can not be dispensable and substitutable for human to live and develop.

水是人类生存和发展不可缺少、不可替代的自然资源。

Not only it is a indispensability character in the Christmas Day, but also it is indispensability character in the New Year.

如今，圣诞老人已成为吉祥如意的象征，不仅是过圣诞节时不可缺少的人物，而且也是欢庆新年时不可缺少的人物。

Post evaluation is an important tache of item, and it works indispensably in the item management. It has an important meaning to increase the benefit of investment.

项目后评价是项目周期中一个不可缺少的重要环节，是项目决策管理不可缺少重要手段，它对改进和完善项目决策水平，提高投资效益具有重要意义。

Classical mechanics, but Galileo, the creator of "the embryo form of law of inertia",with the incline experiment only attested to the falsity of Aristotle's proposition that "the force is the indispensable factor to maintain object movement", and not proposed what is the indispensable factor to maintain object movement.

牛顿第一定律被认为是经典力学的最基本定律之一，但"惯性定律雏型"的原创者伽利略用斜面实验只证伪亚里士多德的"力是维持物体运动不可缺少的因素"这一命题，并没有提出什么才是维持物体运动不可缺少的因素。

Water resource is the fundamental element of life-support surroundings to the human being, and also is the indispensable natural resource to the development of humans society.

水资源是人类生存环境的基本要素之一，是人类生存和发展不可缺少、不可替代的自然资源。

In this way, both "civil society" and government become the necessitous and non-substitutive roles in the social development and progress.

如此，"公民社会"与政府便成为社会发展和进步中不可缺少和不可替代的角色。

In this way, both"civil society"and govemment become the necessitous and non-substitutive roles in the social development and progress.

如此，"公民社会"与政府便成为社会发展和进步中不可缺少和不可替代的角色。

Resign right is one of the compulsory rights in laborer law system. And it is lack of completion if the right to resign is excluded.

辞职权是劳动权体系中不可缺少的一员，缺少了它劳动权的内容将是不完整的。

Suppression of Skpi in mitotic HeLa cells by siRNA resulted in accumulation of telophase cells with elongated inter-cell bridges and with midbodies stretched 2-3 times longer than that of normal cells. These Skpi-eliminated or suppressed cells accumulate higher level of CENP-E, suggesting that spatiotemporal regulation of CENP-E degradation at the midbody is essential for cytokinesis.

接下来，我们用RNA干扰技术系统评估了skp1在有丝分裂末期的具体功能，发现缺少了skp1的HeLa细胞无法完成正常的有丝分裂过程，而更多的以四连细胞的形式存在，从而证明了skp1对于正常细胞周期行进所不可缺少的功能。

However,only was exogenic geological process widely emphasized in the past,while the coupling between endogenic and exogenic geological processes were only presented in formations of experiential judges and qualitative studies.

内动力和外动力地质作用是地质灾害形成过程中不可缺少的两种作用，但是，以往的地质灾害研究偏重于外动力作用，对于外动力与内动力耦合作用的形式，由于缺少直观的实例，只能根据经验感觉进行判断和定性的研究。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。