太阳活动的盛衰以11年为一个周期，在一个周期内，太阳放射的紫外线的变化幅度要比其放射的能量的变化幅度要大得多。
The sun's activity waxes and wanes on an 11-year cycle, and over this cycle the amount of ultraviolet light the sun emits changes a lot more than does the total amount of energy.
井口空气压力变化的周期越大，则井水位的响应幅度越大，而响应的位相滞后越小。
The greater the period of pressure variation in well air is, the greater is the response amplitude of well water level, while the smaller is the phase lag of the response.
使用不同恒温条件，发现以一年为周期的缓慢变化，幅度可达500微伽。
Different ways of stabilizing the outside temperature were employed. A slow periodic annual variation of its readings was observed with amplitude of about 500 microgals.
太阳活动的盛衰以11年为一个周期，在一个周期内，太阳放射的紫外线的变化幅度要比其放射的能量的变化幅度要大得多。
The sun's activity waxes and wanes on an 11-year cycle, and over this cycle the amount of ultraviolet (UV) light the sun emits changes a lot more than does the total amount of energy.
证明了在一定条件下，热源供热量周期性变化引起的室内温度的波动幅度有限，不影响供热质量。
It is proved that under certain conditions, the periodic change of heat supply from heat source has caused little fluctuation in room temperature, and will not influence heat-supply quality.
此外最大相关时间还有明显的以年为周期的季节性变化，变化幅度约为0.7小时。
Moreover, it exhibits remarkable seasonal variation which has a period of one year and ranges to about 0.7 hour.
分析表明，当由简谐声源所发射的声波在一维非稳定流中传播时，对于某一确定位置，其声压幅度除随时间周期变化外，还受到M和（?）
When a harmonic wave propagates in one-dimensional unsteady flow, the wave amplitude at any x-position will be related with Mach number M and (?)
分析表明，当由简谐声源所发射的声波在一维非稳定流中传播时，对于某一确定位置，其声压幅度除随时间周期变化外，还受到M和（?）
When a harmonic wave propagates in one-dimensional unsteady flow, the wave amplitude at any x-position will be related with Mach number M and (?)
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