Elections are essential for the sustenance of parliamentary democracy.
选举制度是维持议会民主所必不可少的。
So we've been talking about nutrients, the elements in the environment that are essential for living organisms to develop, live a healthy life, and reproduce.
所以我们一直在讨论营养，环境中的元素对于生物体的发展，健康的生活和繁殖是必不可少的。
Indeed, it may be for any of the factors, physical as well as biotic, that are essential for organisms.
事实上，竞争对象可能是生命体所必须的任何生物或非生物因素。
These are essential for any team, distributed or co-located.
这些对任何团队，分布的或集中的，都是必要的。
Backups: Are essential for anybody who USES a computer and stores data.
备份：对任何用到电脑，存储数据的人来说，备份是必不可少的。
Plans might sound boring but they are essential for avoiding costly mistakes.
计划看起来显得枯燥无味，但他们是避免错误，节省成本的关键。
These CARDS are essential for those company workers that interact with clients.
这些名片对那些与客户有联系、在公司里工作的职员来说很关键。
Some of the pesticides are essential for protecting human and animal health.
有些杀虫剂对保护人类及动物健康起着至关重要的作用。
It follows that unmanned programs are essential for the advancement of science in space.
为此，很有必要开展无人项目，以促进太空科学研究。
In any industry, standards are essential for interoperability and efficient data interchange.
在任何行业中，标准对于互操作性和高效数据交换都非常重要。
Short database transactions are essential for any highly performing and scalable applications.
短数据库事务对任何高性能、高可扩展性的应用程序来说都是必不可少的。
Adequate stimulation and nutrition are essential for development during the first three years of life.
在生命头三年，适当激励和良好营养是幼儿茁壮成长的关键。
Plastic bags are essential for wrapping containers and products that can spill and stain your clothes.
用塑料袋包住可能会溢出东西、弄污衣服的容器和物品很重要。
Debugging tools are essential for software development in any computer language and runtime environment.
对于任何计算机语言和运行时环境来说，调试工具都是软件开发中不可或缺的组成部分。
In Unicode programming, inversion lists are essential for storing binary properties of character ranges.
在Unicode编程中，基本上都是用倒排表来存储二进制属性和字符序列。
IT proposes a fusion of Business and IT and discusses models that are essential for affecting such a fusion.
它建议融合业务和IT，其中讨论的模型对于形成融合至关重要。
Record the name and chosen password in a secure place, as these principals are essential for your NAS environment.
请在安全的地方记录名称和所选择的密码，因为这些主体对您的NAS环境来说是非常重要的。
Due to sheer scale and complexity, proper configuration management practices are essential for large organizations.
依据其规模与复杂度来说，适当的配置管理实践对于大企业是十分必要的。
When a plot takes a long, tortuous route, then-as any mariner will tell you-stars are essential for navigation.
当电影情节沿着一条漫长而拐弯抹角路线展开时，正如很多海员会跟你讲的那样，“明星”是航行中最必不可少的。
Security perimeters are essential for any big competition and are important for the smooth process of security.
场地周边安保系统的好坏是大型赛事能否成功的根本之所在，也是赛事安保能否顺畅运行的关键。
These capabilities are essential for considering ObjectGrid as an enterprise-capable alternative to a 64-bit JVM.
这些功能对于考虑将ObjectGrid作为64位JVM的企业级替代方案时非常重要。
Any developer knows that these updates are essential for development turnaround time and for enhanced user experience.
每个开发人员都知道这些更新对减小开发周期和增强的用户体验都是至关重要。
Backup and recovery are essential for any business environment where data loss must be minimized if not totally avoided.
对于必须最小化数据丢失(如果不能完全避免的话)的任何业务环境，备份和恢复是最基本的操作。
These are the best available data and they are essential for painting the global picture of health and how it is changing.
这些是现有最佳数据，对描绘全球卫生状况以及卫生如何发生变化至关重要。
Oily fish-- like wild salmon and herring-- contain omega-3 fatty acids, which are essential for a healthy heart. Health.com
油性鱼——像野生鲑鱼和鲱鱼——含有ω- 3脂肪酸，这对心脏健康至关重要。
Custom automated workflows are essential for adapting an NMS to the varying business requirements of different organizations.
为了使NMS适应不同组织对各种业务的需求，定制自动化工作流是有必要的。
For today's complex software applications, automated tools are essential for generating test data, and for running and analyzing tests.
对于当今的复杂软件应用程序，自动化工具对生成测试数据并运行和分析测试是必要的。
Use one or all of the methods above to keep track of how you're doing, keeping in mind that realistic goals are essential for your success.
使用一种或者上面所有的方法追踪你是如何做的，记住现实的目标是你成功的根本。
Use one or all of the methods above to keep track of how you're doing, keeping in mind that realistic goals are essential for your success.
使用一种或者上面所有的方法追踪你是如何做的，记住现实的目标是你成功的根本。
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