从技术上看，串行化器并不是XSLT处理器的一部分，但它在实际使用中是必不可少的。
The serializer is not technically part of the XSLT processor, but it is essential for practical use.
简单的培训能够为员工提供基本的语言和符号知识，但是并不能提供使用和交流中所必不可少的技巧。
Simple training can provide people with basic language and notation awareness, but not necessarily the skills to use and communicate with them effectively.
虽然它们是必不可少的，但是这些服务对手机来说并不是唯一的。
Although I find them indispensable, the services aren't unique to a mobilephone.
这一步是必不可少的，因为与项目文件不同，解决方案文件并不是向后兼容的。
This is necessary because, unlike project files, solution files are not backwards compatible.
注意，在本文中，Velocity的使用并不是必不可少的。
Note that the use of the Velocity in this context is not essential.
本文提出这段代码只是供高级Lisp或Clojure程序员参考，这些代码并不是理解所有细节所必不可少的。
This code is included for the advanced Lisp or Clojure programmer, and it isn't essential to understand every detail.
然而，这并不是一个必不可少的组成部分的理论，并再次这是一个理想化。
However, it is not an essential ingredient of the theory and again th is is an idealization.
声音可以点缀你的站点，但并不是必不可少的。
我们以前讨论过一心多用是围绕工作和家庭生活的打拼中必不可少的一部分。但我最近了解到，真正的一心多用其实并不存在。
We have discussed before how multitasking is an integral part of the juggle. But, as I learned just recently, true multitasking is a myth.
你的衬衫质量好的并不是必不可少的衣橱里，有超过它可以穿。
Good quality of your shirt is not indispensable in almirah, any more than it can dress.
大家都想享受圣诞节，市中心的彩灯通常是节日必不可少的，但是这并不意味着仅仅为了装饰纳税人就应该支付上百万英镑。
Everyone wants to enjoy Christmas and lights in town centres are often part of the festivities, but that doesn't mean taxpayers should be left footing million pound bills just for decorations.
本研究还发现，检测石蜡切片肝组织内抗原时，阻断内源性生物素并不是一个必不可少的步骤。
In this study, it also has been shown that blocking endogenous biotin is not a necessary procedure in detecting tissue antigen on paraffin embeded section.
最后一点，也是必不可少的一点。在整个项目管理的内容中，并不是所有问题都使用于DMAIC方法，因为DMAIC更需要时间和参与人员的专业水平。
Last but not least, in project management contexts not all of the problems are best solved with DMAIC methodologies since it takes time and needs experts of high caliber.
虽然看似并不重要，甚至还有些麻烦。 但是要是你想有一种健康的生活方式，那么足够的睡眠是必不可少的。
While it might seem unimportant, or potentially even cumbersome, sleep is one of the things you can't skimp out on if you're trying to live a healthier lifestyle.
尽管站内文件并不太多，但围绕着公文的处理与保管而需要进行的撰稿、校对、印制、收发登记、立卷、归档等环节是必不可少的。
Though there are not lots of documents, indespensible processes of drafting, rereading, printing, registering, setting up archives and archiving etc. are found when a document is handled or preserved.
我喜欢有一幅当这样做，虽然它并不是必不可少的。
I prefer to have a picture when doing this although it is not essential.
但这并不是说报纸是必不可少的，即使现在有些人从电视或电台获得的新闻很多。
It is not that newspapers are a necessity. Even now some people get most of their news from television or radio.
在嵩山脚下一座并不起眼的少林功夫学校里，流汗是必不可少的。
At a modest-looking martial arts academy at the foot of Mount Song in Henan, sweat is guaranteed.
人体并不储存过剩的蛋白质，即使这些蛋白质对维持身体健康必不可少。
Our bodies don't store excess protein, even though it is crucial to maintaining a healthy body.
人体并不储存过剩的蛋白质，即使这些蛋白质对维持身体健康必不可少。
Our bodies don't store excess protein, even though it is crucial to maintaining a healthy body.
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