In a more formal definition, topic specialization starts with the containing element and works from the top down.

So today's effort into tomorrow will be to finish cementing off the well from the top down.

所以，从今天到明天的努力将是完成从顶部到底部的水泥注入工作。

It can come from the top down as well as bottom up, and in the places you least expect.

自上向下也好，自下向上也罢，创新可以来自于任何地方，甚至是你最想不到的地方。

Managers and executives examine total cost of ownership ( TCO) from the top down.

管理者和执行者自顶向下地检查所有权的全部成本（TCO）。

However, it is rare for an architecture to be totally driven from the top down.

然而，很少有体系架构是完完全全的自顶向下的。

For at least five years, world capital markets have been driven from the top down.

至少5年来，世界资本市场一直是自上而下驱动的。

This legislation came from the top down but the voice came from the general public.

这部法令的颁布是自上而下的，但呼声来自公众。

Organizational change on this scale requires significant investment and commitment from the top down.

在如此之大的组织内实施变革需要自上而下投入大量成本和投入。

We have to have more theory, and it can come as much from the top down.

我们需要更多的理论，而且他们能够自上而下而来。

Agile from the top down and all the way across the organization?

在组织内自上而下推广敏捷方法？

Yet China's vigour owes much to what has been happening from the bottom up as well as from the top down.

然而中国的元气更多归功于那些由下而上同样也是由上而下的发生的事情。

Managing from the top down, we operate with full legitimacy.

我们进行由上而下的管理有充分的合法性。

Keeping the electron tube amplifier in a good state can reduce the maintenance costs, prolong TV transmitter lifetime, promote the quality of the screen, at the same time, it can also secure the safety of the broadcasting.

使用、维护好电子管放大器能大大降低维修成本、延长发射机寿命、提高画面质量，确保安全播出。

It joins rapidly, keeps in touch with the characteristic such as being reliable, apply to the radio equipment and electron tube instrument field and join the coaxial cable of the radio frequency extensively.

它具有连接迅速，接触可靠等特点，广泛应用于无线电设备和电子仪器领域连接射频同轴电缆。

The vacuum tube is an electron tube from which all or most of the gas has been removed, permitting electrons to move with no or low interaction with any remaining gas molecules.

真空管是一种内部气体全部或部分抽空的电子管，从而使电子在不受或少受气体分子的干扰下运动。

Brazing quality and product reliability are both increased as using high frequency pulse microplasma arc heating process for assembly brazing of cathode and photoetching grid of electron tube.

采用高频脉冲微束等离子弧做为电子管阴极和光刻栅极装配钎焊工艺的热源，提高了钎缝质量和产品的可靠性。

A method of realizing untouched fire test by a new transducer GP 16 fire test electron tube was introduced, and the circuit for finishing the functions was given.

介绍了采用新型传感元件GP-16火焰检测电子管实现非接触式火焰检测的方法，并给出了完成其功能的电路图。

The product host circuit has adopt the IGBT component, has complied with fundamental lattice new being old characteristic generation high frequency equipment with shell electron tube Bo.

本产品主电路采用IGBT器件，从根本上格新了以玻壳电子管为特征的老一代高频设备。

Suitable high frequency magnetic conductive inductor was made through analyzing the high frequency vibrating circuit of electron tube and doing an experiment of magnetic conductive inductor.

通过对电子管高频振荡线路的分析和对导磁体感应器的试验，制作了合适的高频导磁体感应器。

After long-term research by scientists from various countries, they found that microwave electron tube using sheet electron beam can work at high-frequency and can produce high power.

经过各国科学家长期的研究，发现使用带状电子注的微波电真空器件能够工作在高频段并且产生高功率微波。

The joints of high purity alumina ceramic and oxygen-free copper with high strength and low gas loakage are needed in electron tube.

电真空应用中，要求高纯氧化铝与无氧铜的连接接头具有较高的强度和气密性。