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周期摄动用英语怎么说？

periodic perturbations

周期摄动

相关词汇
periodic perturbations
periodicadj. 周期的，定期的，回归的，间歇的，时而发生的；
例句
There may be periodic police 'sweeps' of crime in the area.
警方可能对该地区的犯罪活动进行定时的“扫荡”。
perturbationsn. <正>忧虑( perturbation的名词复数 )，不安，烦恼，<术>摄动；
相关好句
Although he is getting along in years, he can work hard as usual.
虽然他年岁已大, 但他还能像往常一样努力工作。
his enmity towards the Church
他对基督教会的敌对情绪
Snow covered the ground.
雪覆盖了大地。
Her parents have agreed to put up bail for her.
她父母同意为她支付保释金。
almost everywhere divergent
几乎处处发散的
It is an anonymous letter.
这是一封匿名信。
a short, fat man with greasy black hair and thick pebble glasses
身材矮胖、戴着厚厚眼镜、满头油腻腻黑发的男人
He works extremely hard and therein lies the key to his success.
他工作极为勤奋，那就是他成功的关键。
the Japanese archipelago
日本群岛
His hot pancakes are delicious,you buy them straight from the kitchen to eat in your hands.
他卖的热煎饼味道真好,你直接从厨房里买来用手拿着吃。