Homeobox gene is a sort of regulatory gene which controls embryonic development and cellular differentiation.

Each layer gives rise to specific tissues embryonic development.

每个胚层产生特殊的胚胎组织.

The velocity of the embryonic development is accelerated as thetemperature, at 20-33℃, is increased.

在适宜温度范围内,随着温度的升高,胚胎发育速度加快,在水温30℃时, 胚胎发育的速度比在20℃时快一倍.

The relation between density and field emission characteristics of CNT cathode arrays is very close.

它在场发射阴极阵列中的密度与阴极的场发射性能有着非常密切的关系.

Using diamond film or diamond-like film as field emission cathode is one of the promising applications.

金刚石膜或类金刚石膜用来作为场发射的阴极,是其极具前景的应用之一.

This paper presents the CVD growth and the field-emission of carbon nanotubes as a large currentcathode.

电泳法是一种新型的大面积碳纳米管场发射阴极制备方法.

Field emission characteristics in high vacuum chamber was measured.

在高真空室中测量了样品场发射特性.

Ion bombardment affects the stability and lifetime of micro-tip field emission devices.

离子轰击影响尖端场致发射器件的稳定性和工作寿命.

When purchasing a new car, consider buying an energy-saving and low green house gas emission car.

在购买新车时, 多考虑购买可以节省能源而且温室气体排放量较低的车子.

Now terrestrial environment protection's key is reduces the carbon dioxide and the waste gas emission rate.

现在地球环境保护的关键就是减少二氧化碳和废气的排放速度.

Detailed gas emission information has to be available publicly, so we produce reports specifically for that.

详细气体排放信息必须公开发表, 所以我们特别为生产,报告.

Don't worry about the impact of greenhouse gas emission total amount restriction law-making on industry investments.

不必担心温室气体排放总量限制立法,对于产业投资的冲击.

Taking coal as experimental coal sample, gas emission characteristics of coal was tested and studied.

以大块煤为实验煤样, 实验研究了大块煤瓦斯放散特性.

The result offers some basis for predicting gas emission quantity accurately.

计算结果为瓦斯涌出量的准确预测提供了依据.

The mathematical mold is more closed to actual gas emission.

其数学模型更接近瓦斯涌出的实际情况.

The characteristic parameters of acoustic emission monitoring for cracks of rotor were identified through experiments.

通过实验找出适合转轴裂纹声发射监测的各种特征参量.

The frequency, strength and energy of acoustic emission are concerned with rock mass fracturing.

岩体声发射的频度 、 强弱及高能事件与岩体的破坏过程密切相关.

The application and practice of acoustic emission technology of rock mass was presented in this paper.

本文主要介绍了岩体声发射技术在小铁山矿的应用与实践.

The signals of the acoustic emission during welding are generated within materials being welding.

焊接过程的声发射信号是焊接工件内部的一种信号.

A model was constructed in laboratory to simulate the acoustic emission pipeline leak detection.

在实验室条件下,建立了压力管道泄漏的声发射检测模型.

Acoustic emission count ( emission count )

声发射计数 ( 发射计数 )