必备工具

essential oil───香精油，精油

essential oils───香精油

essential role───重要角色；至关重要的作用

essential items───必需品

essential skill───基本功

essential fact───基本事实

essential step───基本步骤

essentialities───n.重要性；本质；真髓；根本性

essentiality───n.重要性；本质；真髓；根本性

One essential tool is adaptive optics technology, which, in effect, takes the twinkle out of the stars, thus providing sharper images from telescopes on the ground than would otherwise be possible.───一个重要的工具就是自适应光学技术，实际上就是通过地面上的望远镜将恒星的闪耀去除，从而比采用其他方法能提供更为明显的图像。

Even in small companies, computers are an essential tool.───即使在小公司里，计算机也是必不可少的工具。

The goal of the partnership, signed at the end of 2005 for an initial period of three years, is to raise awareness of the World Heritage Convention, and the map is an essential tool for this purpose.───此伙伴关系于2005年底建立，最初合作期为三年，其目标是提高公众对《世界遗产公约》的认识，而世界遗产地图则是达成这一目的的重要工具。

Web crawling is an essential tool for this approach, and it ensures that we have the most up-to-date search results.───网爬行是为这条途径的一个必要工具，并且它保证我们有最新的搜索结果。

Despite concerns over privacy, the site has some of the world's heaviest traffic and is an essential tool for business, media and politics.───虽然对隐私有所担忧，但这个网站依然是世界上流量最大的网站，是实现商业、媒体和政治等目的的必要工具。

You can even track down a suspect using a phone tap, an essential tool of any respectable 70s private eye or police detective.───你甚至可以追查嫌疑人用手机塔的一个重要工具，任何尊敬七十年私人或眼警探。

MIS is an essential tool for helping printers transition from a craft to a modern manufacturing industry.───管理信息系统是一个必不可少的工具帮助打印机过渡到工艺向现代制造业。

The Brazilian experience shows that the national campaign allied with the media is an essential tool in the fight against skin cancer.───巴西的经验表明，全国运动与媒体宣传相结合是防治皮肤癌的重要手段。

POM is an essential tool that maximizes productivity, by optimizing time for a refined result.───是一个必不可少的工具，聚最大化，通过优化生产率的一段时间内雅致的结果。

Optically analytical balance in laboratory is one of the most common instruments, and is an essential tool on measuring weight precisely and sensitively.

Even in small companies, computers are an essential tool.

Teaching experiment computer is a essential tool in computer organization course, it provides the hardware and software platform for experiment.

The shear probe is a basic and essential tool for measurements of ocean turbulence and it is generally mounted with a piezoelectric crystal as a sensor.

Generation of fungal protoplast is an essential tool for genetic transformation system.

RKHS will be an essential tool a connection between Regularization Theory and Statistical Learning Theory.