查询词典 sunspot cycle

The energy balance equations and exergy balance equations of heat exchanger and power equipment in the combined power cycle were established.Taking condensation temperature of Rankine cycle, inlet and outlet pressure of turbine of Rankine cycle, inlet and outlet pressures of turbine of LNG cycle as key parameters, the influences of these parameters on the thermal efficiency and exergy efficiency of the combined power cycle were analyzed.

建立了混合动力循环中换热和动力设备的能量平衡方程和可用能平衡方程，并以朗肯循环冷凝温度、朗肯循环透平进出口压力、液化天然气循环透平进出口压力为关键参数，分析了上述关键参数对混合动力循环热效率和可用能效率的影响。

The energy balance equations and exergy balance equations of beat exchanger and power equipment in the combined power cycle were established. Taking condensation temperature of Rankine cycle, inlet and outlet pressure of turbine of Rankine cycle, inlet and outlet pressures of turbine of LNG cycle as key parameters, the influences of these parameters on the thermal efficiency and exergy efficiency of the combined power cycle were analyzed.

建立了混合动力循环中换热和动力设备的能量平衡方程和可用能平衡方程，并以朗肯循环冷凝温度、朗肯循环透平进出口压力、液化天然气循环透平进出口压力为关键参数，分析了上述关键参数对混合动力循环热效率和可用能效率的影响。

The work had been carried out can be summarized as follows: 1. Thermal cycle analysisBased on the classical thermodynamics, influence of isobaric reheat and isovolumetric reheat on cycle output is discussed. Based on the finite time thermodynamic theory, the thesis discusses the optimization of Rankine cycle, Brayton cycle and Stirling cycle between constant temperature heat source and constant temperature heat sink or between variable temperature heat source and constant temperature.

第一、循环优化分析：采用经典热力学研究了等压再热与等容再热对循环功的影响；采用有限时间热力学深入研究了恒温热源一恒温冷源和变温热源一恒温冷源液氮发动机朗肯循环、布雷顿循环和斯特林循环的优化和对比；着重研究了工质导热率与热机换热器总导热率之比对循环性能的影响、高温侧换热器导热率与低温侧换热器导热率之比对循环功率的影响等内容；得到了一些对循环和系统设计具有现实指导意义的结论。

Krebs cycle (citric acid cycle; TCA cycle; tricarboxylic acid cycle) A complex cycle of reactions in which pyruvate, produced by glycolysis, is oxidized to carbon dioxide and water, with the production of large amounts of energy.

卡尔文循环（柠檬酸循环， TCL 循环，三羧酸循环）：糖酵解过程中产生的丙酮酸，被氧化为二氧化碳和水并产生大量能量的复杂反应过程。

There are 13.944335 synodic months in a full moon cycle, the 251-month cycle approximates the full moon cycle to 13.944444 synodic months and the 767-month cycle approximates the full moon cycle to 13.9454545 synodic months .

一个满月周期相当于13.944335交点月，251个月（18个周期）的周期接近13.944444交点月，而767个（55个周期）月的周期使满月周期对应为13.9454545焦点月。

With in-depth study of solar activity, we also found a number of other The sunspot cycle, such as the 22-year cycle, 80-year cycles.

随着对太阳活动研究的深入，又发现了一些其他的太阳黑子周期，如22年周期、80年周期等。

Wolf further defined the average length of the cycle 111 years, that is, the 11-year sunspot cycle.

沃尔夫进一步确定了周期平均长度为111年，即太阳黑子的11年周期。

One of the outstanding questions facing solar physicists is the origin of the solar magnetic cycle: What drives the 11-year sunspot cycle?

太阳物理学家面临的突出问题之一是太阳磁周期的起源：是什么推动了11年的太阳黑子周期？

For example, the sunspot cycle and the allied magnetic-polarity cycle have been linked to periodicities discerned in records of such variables as rainfall, temperature, and winds.

人们已经把太阳黑子周期及相关的磁极性周期和从雨量、温度、风等变量的纪录中分辨出的周期联系了起来。

For example, the sunspot cycle and the allied magnetic-polarity cycle have been linked to periodicities discerned in records of such variables as rainfall,temperature, and winds.

例如，太阳黑子的周期以及相关的磁极性周期被科学家与诸如降雨量、气温、风等可变性因素的记录中所能辨别出的周期性联系起来。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？