中东发生的事件表明，双方的力量消长变化非常迅速。
As events in the Middle East have shown, power can shift very quickly.
由于太阳活动的正常消长变化没能完全符合我们过去预计的周期，最近几年许多人太阳内部动态活动的课题产生了浓厚的兴趣。
The sun's internal dynamics were the subject of intense interest over the last few years as the normal waxing and waning of solar activity did not follow past cycles as closely as anticipated.
本实验对里脊发酵火腿发酵理化特性变化及储藏过程微生物的消长规律进行了研究。
The variation of physicochemical characteristics and the growth and decline regularity of microbe of fermented loin ham were investigated in storage process.
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