周期性 periodicity

例句

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1.
The research resultsshowedthat the population density of rodents fluctuated obviously among different years, but there was no periodicity.
研究结果表明，不同年间啮齿类种群密度波动明显，但无周期性；
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2.
The finely grounded PAA was crystal polymer and its structure unit arranged periodicity with a little crystal lattice disfigurement.
分离得到的PAA为结晶聚合物，结构单元呈周期性排列，但存在一定的晶格缺陷。
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3.
The former repulses all the way and the repulsive forces are weaker than those of bright solitons. They have no periodicity, either.
而后者从一开始就相互排斥，且这种排斥作用较亮孤子来说相当微弱，同样也不具有周期性。
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4.
The suddenness, contingency and periodicity of its occurrence were explored and suggestions about the forecast of the pest were made.
探讨了发生的突发性、偶然性、周期性，并对该虫的调查测报等工作提出了建议。
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5.
The treatments varied because pelvic sores occurred repeated without any periodicity and symptoms were different due to various causes.
以非周期性反复发作的盆腔疼痛为特点，不同疾病引起的疼痛体征不尽相同，治疗方法也不同。
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6.
The enterprise has high similar characteristic to the biology in growth, competition, environment adaptability and periodicity etc.
企业具有与生物高度相似的成长性、竞争性、环境适应性、周期性等特征。
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7.
The redshift periodicity is evidence for past oscillations in the expansion rate of the universe. . .
该红移的周期性是过去宇宙膨胀速率变化的证据…
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8.
The science and education sustainable development ability of Gansu Province enhances periodicity, assuming the broken line rise condition.
甘肃省科教可持续发展能力周期性提高，呈折线型上升状态。
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9.
The climate changes affect the climate output of winter wheat with a remarkable periodicity.
气候变化对冬小麦气候产量的影响具有明显的周期性。
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10.
The repeated emergence of seismites in strata section shows that the movement of boundary faults has periodicity and periodicity.
震积岩在地层剖面中多次出现表明边界断裂的活动具有周期性和幕式特点。
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