It is suggested that the instability is excited in the low density plasma when the electron beam drift velocities exceed the ion acoustic speed.
不稳定性产生的可能机制是由于电子束穿过低密度本底等离子体的漂移速度超过离子声速而激发起来的。
A compact ECR plasma source, the strengths of which are its ultra low electron temperature, its low pressure and its ultra low density, was developed and built for such a simulator.
本文就是为空间电离层环境模拟器研制的扩散型极低气压、低电子温度和极低密度的紧凑型电子回旋共振等离子体源的研制。
The use of pulsed high energy density plasma is a new low temperature plasma technology for material surface treatment and thin film deposition.
脉冲高能量密度等离子体是一项全新的等离子体材料表面处理和薄膜制备技术。
Gradient gel electrophoresis determine small, dense low-density lipoprotein in plasma of patients with coronary heart disease.
梯度胶电泳法测定冠心病患者血浆小密低密度脂蛋白。
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。
Using this interferometer, the time variation of the average electron density of a low pressure pulsed plasma has been measured and the experimental result is quite satisfactory.
用此干涉仪测量了低气压脉冲放电产生的冷等离子体的平均电子密度随时间的变化，取得了较为满意的结果。
Plasma cholesterol and low-density lipoprotein (LDL) were elevated with a normal triglyceride level.
血浆胆固醇和低密度脂蛋白升高，甘油三酯正常。
Plasma total cholesterol (TC), triglycerides (TG), low density lipoprotein cholesterol (LDL-C) and high density lipoprotein (HDL) were estimated by enzymatic method.
采用酶法观测空腹总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白(HDL)及低密度脂蛋白胆固醇(LDL - C)的变化。
Plasma in a pulsed discharge in water (PPDW) has the character of high pressure, high density and low temperature, low ionized degree.
水中放电等离子体(PPDW)具有高压、高密度和低温、低电离度的特点，人们对其辐射是否具有黑体辐射的特点一直观点不一。
For a high plasma density and low applied voltage, the steady-state sheath thickness is more or less insensitive to variations in the spherical radius, but it is very sensitive under other conditions.
当等离子体密度较高、注入电压较低时，稳态鞘层厚度对于靶体半径的变化极不敏感。
Fasting plasma glucose, HbA1c, triglyceride, total cholesterol, low density lipid cholesterol and high density lipid cholesterol were measured in all cases.
检测所有患者的空腹血糖、糖化血红蛋白、血清甘油三酯、总胆固醇、低密度脂蛋白胆固醇、高密度脂蛋白胆固醇。
The interaction between an ultra-short ultra-intense laser pulse and a solid target with a low density pre-plasma is examined. Both linear and circular polarizations of the laser are considered.
对线极化、圆极化的超短超强激光脉冲与靶前有一段低密度预等离子体的固体靶的相互作用进行了理论和粒子模拟研究。
The interaction between an ultra-short ultra-intense laser pulse and a solid target with a low density pre-plasma is examined. Both linear and circular polarizations of the laser are considered.
对线极化、圆极化的超短超强激光脉冲与靶前有一段低密度预等离子体的固体靶的相互作用进行了理论和粒子模拟研究。
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