With its nuclear fuel exhausted, this brief, spectacular, closing phase of a sun-like star's life occurs as its outer layers are ejected and its core becomes a cooling, fading White Dwarf.
随着其核燃料的用尽，这个短暂的、壮观的、像太阳一样恒星的临近结束阶段而发生变化，因为它的外层喷发，而内核变成一个逐渐冷却、逐渐褪色的白矮星过程。
While the planetary nebula phase is thought to last for around 10, 000 years, astronomers estimate the age of the outer filamentary portions of this halo to be 50, 000 to 90, 000 years.
虽然行星状星云阶段持续约1万年，天文学家估计其外晕的丝状物质年龄在5万至9万年间。
It briefly introduces the source of silt at the outer waterway of Shantou Port and construction situation and regulation effect of Phase I regulation project.
简要介绍汕头港外航道泥沙来源及一期整治工程的建设情况和整治效果。
The amorphous phase is found in the outer layer of hot-dip aluminized layer.
结果发现，镀铝层的表面层存在非晶态金属相。
In order to make more effective control of universal power quality controllers (UPQC), an outer loop model for the voltage loop in a three-phase three-wire UPQC is proposed in the paper.
为了对通用电能质量控制器直流侧电压进行更为有效的控制，提出一种用于三相三线通用电能质量控制器(UPQC)直流侧电压控制的外环模型。
This paper presents a decoupled control scheme for three?phase four?leg inverter through an inner current regulator based on space vector cascaded with an outer synchronous frame PI controller.
该文提出了一种采用内环空间矢量电流调节器和外环同步坐标比例积分控制器相级联的三相四桥臂逆变器的控制方案，实现了对三相四桥臂逆变器的解耦控制。
The control system is made of double closed loops: the inner current loop and the outer temperature loop, and satisfies the EAF's temperature need and three phase current balance.
采用温度控制外环和电流平衡控制内环的双闭环结构实现电弧炉温度和电极三相电流平衡的智能集成控制。
In laboratory experiments, the expansion Angle and impact area of gas-solid two-phase jet, distribution of the central and outer jer flow as well as the influencing factors were measured.
试验中测定了气—固两相流的射流膨胀角及冲击面积，探讨了中心射流与外层射流的分布及其影响因素。
The solubility of CH331 in outer aqueous phase played a significant role in encapsulation efficiency and in vitro drug release of microspheres.
CH331在外水相中的溶解度影响微球的包封率和体外释药行为。
The outer beams are excited to cause them to vibrate in the plane of the beams and 180 degrees out of phase with the inner beams.
外层梁很高兴能够促使他们在震动的梁和180度的相位与平面内梁。
In laboratory experiments, the expansion Angle and impact area of gas-solid two-phase jet, distribution of the central and outer je...
试验中测定了气—固两相流的射流膨胀角及冲击面积，探讨了中心射流与外层射流的分布及其影响因素。
In laboratory experiments, the expansion Angle and impact area of gas-solid two-phase jet, distribution of the central and outer je...
试验中测定了气—固两相流的射流膨胀角及冲击面积，探讨了中心射流与外层射流的分布及其影响因素。
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