A helpful but not essential feature is database navigation.
一个非基本但十分有用的特性是数据库导航。
Do you have features in your product that are not essential to your customer's needs?
你的产品中有用户不需要的功能吗？
In this sense, the first job is not essential, it should not be neglected, also cannot be neglect.
从这个意义上来说，第一份工作不是可有可无的，它不应被怠慢，也不能被怠慢。
Therefore, it's not essential for a service to be a Web service, which is only one type of service.
因此，服务并不一定是Web服务，后者只是服务的一种类型而已。
According to him, professionals are too concerned with money and with things not essential to music.
他认为，专业音乐人太注重金钱而忽视了音乐的本质。
Conscious awareness may help improve our behaviour, butit does not necessarily do so and is not essential.
意识可能会改进我们的行为，但是那并不必要也不重要。
In this application, sound greatly enhances the user experience, but is not essential to the main task.
在这个应用程序里，声音能极大地增强用户体验，但是对于主要任务来说并不是必需的。
It is fine to scan your whole code base for opportunities to use these features, but it is not essential.
在整个代码库中寻找使用这些特性的机会是不错的做法，但这不是必需的。
Symbols and elements are not essential in design and they themselves only could not build up good designs!
符号和元素既不是设计的必需品，自身也无法构成好的设计！
People often ask me, "Why should I care if a species goes extinct? It's not essential to my daily life, is it?"
人们总是问我：“我为什么要关注物种灭绝呢？它在我的日常生活中又无关紧要，不是吗？”
The particular markup codes that go to the output live in yet another file, for organizational not essential reasons.
转至输出的特殊标记代码还是存储到另一个文件中了，这是由于组织的原因而非本质原因。
Look at the future with joy in your hearts, as it is welcoming and desirable if not essential to your evolution.
看看未来，用你充满喜悦的心灵，因为它是欢迎和值得拥有的，如果不是对于你的进化不可或缺。
Avoid hearing game sounds, including incidental sounds and soundtracks, that are not essential to using the game.
避免听到游戏声音，包括附带声音和配乐，这是并不是玩游戏时必需的声音。
"However, although a parent's desire to find a good match (for their child) is wise, it's not essential," he added.
他同时还说：“不过，尽管父母想为自己的子女找到一个合适的配偶是明智的，但绝非必要之举。”
The operating system also contains other programs that are important, but not essential to making the computer run.
操作系统还包括其它的重要程序，但那些并不是使电脑运行的最关键程序。
A manual gear shift and clutch are not essential to the task of driving, so they are removed to achieve simplicity.
所以手动变速杆和离合器对驾驶而言是不必要的，我们可以删掉该装置以达到简约。
Omega 9 is not essential. It has fewer demonstrated health benefits, and our bodies produce it from other unsaturated fats.
欧米加9是非必需的，它很少表现对健康的好处，我们的身体能从其他不饱和脂肪中自己合成。
If mobile TV is not used enough to make money from advertising, it is also not essential enough to persuade lots of people to pay.
如果手机电视不能从广告商那边赚取足够多的钱，那么说服很多人去购买这种手机也就没什么必要了。
Canonical service components, that is, services designed as services from the ground up, are not essential to make this scheme work.
要使这套模式发挥作用，那些正规的服务组件，即那些从底层设计出来的服务，并不是必需的。
While it is not essential for an Intranet to have a physical connection into the Internet, the benefits can often outweigh the risks.
尽管对于内特网而言不必一定与因特网有物理联接，但是联接的好处经常大于风险。
NOTE: Past development experience, especially with Eclipse, is helpful but not essential to appreciating the topics presented in this article.
注意：过去的开发经验，尤其在Eclipse 方面的开发经验，对实现本文所述主题很有帮助，但这还不是最根本的。
Thus, EpR is probably a basolateral protein, and infection of the airway epithelium is not essential for systemic spread and virulence of MV.
因此，电子顺磁共振可能是基底蛋白质和感染的气道上皮来说不是必须的全身蔓延，毒力的MV。
The sales information gets updated constantly in the sales table, but it is not essential that the executives get up-to-the-second information.
销售信息经常更新到sales表中，但这不是说经理们必须得到最新的信息。
Now that you’ve identified the essential, you can identify what’s not essential. What things in your life are not truly necessary or important to you?
既然你已经把重要的标记出来了，你也能将不重要的标记出来，在你生活里并非真正必要或重要的有哪些事？
Uniqueness: Although not essential, a site usually offers something unique either in terms of coverage or format compared to a similar print resource.
独特性：虽然并非必不可少，但与类似的纸质印刷材料相比，无论是覆盖范围还是编排格式方面，网站在提供信息时应具有一定的独特性。
Providing the ability to use a keyword argument is not essential, but it can make code with lots of arguments a lot clearer, and is not much extra work.
提供使用关键字参数的能力不是必需的，但它可以使带有许多参数的代码变得清楚许多，而且不需要大量的额外工作。
Here, as elsewhere in Yeats' poetry, it's not essential for you to be able to pursue his occult learning and decode his symbols in order to read his poetry.
这首诗还有他的其他诗里，研究他的神秘主义学习，和解释这些象征对读他的诗，来说不是很重要。
This is often achieved with substituting blocks of code with a single lined comment when such blocks are not essential for the understanding of the current sample.
作者为此常常采用的一种技巧是把对于理解当前例子不是必需的代码段用一行注释来代替。
So when I contemplate a physical object I'm aware that it is necessarily extended and I am also aware that it is not essential to its being that it be a thinking thing.
当我思考一个实体对象的时候，我会意识到它的必然延展，且其精髓并不是一个思考的物质。
So when I contemplate a physical object I'm aware that it is necessarily extended and I am also aware that it is not essential to its being that it be a thinking thing.
当我思考一个实体对象的时候，我会意识到它的必然延展，且其精髓并不是一个思考的物质。
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