等离子体

Meanwhile, the researches on the plasma sheath are notenough, especially the research on the sheath characteristic of the electronegative plasma. Forthe great amount of negative ions that exist in some plasmas processes have impact on thestructure of the sheath dramatically.

但等离子体鞘层的研究工作还不够完善，特别是电负性等离子鞘层特性的研究，由于在某些等离子体加工中存在大量的负离子，会对鞘层结构产生很大的影响。

Electrothermal plasma devices are of great importance in electrothermal or electrothermal chemical launchers and many other technological applications.

脉冲消融毛细管等离子体发生器产生的等离子体射流具有高密度和相对低温的特性在电热发射和电热化学发射以及其他科学研究和工业应用领域都具有潜在的应用前景。

The electron temperature of plasmas was calculated from the measured intensity and stark broadening of emission spectral line respectively.

由发射光谱线的强度和Stark展宽分别计算了等离子体电子温度和电子密度，并由实验结果讨论了激光等离子体中电子温度的时间和空间演化特性。

SENTECH Instruments develops, manufactures and sells advanced quality instrumentation for Thin Film Metrology (reflectometer, ellipsometer, spectroscopic ellipsometer) and Plasma Process Technology (plasma etcher, plasma deposition systems).

sentech 仪器开发，制造及销售先进的仪表质量薄膜计量和等离子工艺(等离子体刻蚀，等离子体沉积系统)。

The method can be carried out in a direct plasma etching process or in a remote plasma etching process.

该方法可以在直接等离子体刻蚀处理中或远程等离子体刻蚀处理中执行。

The theories on pyrolysis and coking and hydrogenation of heavy oil are used to know the liquefaction and gasify and coking of coal. 3. The results of particle feeding in the hot plasma jet (1) By using the cold state of spraying the diesel oil mist transversely in the air flow at the subsonic and ultrasonic speed to imitate the stress condition and motion trace of coal powder in the plasma jet, it shows that with the speed of air flow changed from subsonic speed to ultrasonic speed, the uniformity of mixture between the coal powder with certain speed and air flow becomes worse, mixture length becomes shorter, which agrees with the law of momentum transfer.

三、热等离子体射流中颗粒注入研究的结果(1)利用柴油油雾在亚、超音速气流中横向喷射冷态模拟煤粉在等离子体射流中的受力和运动轨迹，结果表明随着气流速度由亚音速向超音速增加，一定速度的煤粉与气流混合均匀度变差，混和长度增加，符合动量传递规律。

With the development of the micro-electronic fabrication, the technology of the direct current glow discharge is applied in much fields.

正是由于直流辉光放电等离子体源的广泛应用，对其需求与日剧增，因此对其放电生成等离子体源特性的研究有着非常重要的意义。

Helicon plasma is a kind of high density,low temperature plasma in low pressure.

螺旋波等离子体是一种高密度的低温低气压等离子体。

The implanter equipped with intense current, pulsed cathodic arc metal plasma sources which have both strong coating function and gas and metal ion implantation function. Its pulse high voltage power supply can provide big output current. It can acquire very good implantation dose uniformity.

第三代多功能等离子体浸没离子注入装置的强流脉冲阴极弧金属等离子体源既具有强的镀膜功能，同时也具有强的金属离子注入功能；它的脉冲高压电源能输出大的电流；并可获得高的注入剂量均匀性。

Under the action of the femto-second laser, when the multi-photon nonlinear Compton scattering takes place in the linear plasma, the effects of the femto-second coupling laser field formed by the scattering laser and incident laser on the light field and electron density profile in the linear plasma have been studied using the model of the inelastic collision between the electron and multi-photon group and the model of the cold plasma.

应用电子和多光子集团非弹性碰撞模型和冷等离子体模型，研究了飞秒强激光与线性等离子体发生多光子非线性Compton散射时，散射激光与人射激光形成的飞秒耦合激光场对线性等离子体层中光场和电子密度分布的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。