• Periodic checks are carried out on the equipment.

    设备定期进行检查

    《牛津词典》

  • Periodic checks are taken to ensure that high standards are maintained.

    进行周期性检查确保高标准得以维持。

    《柯林斯英汉双解大词典》

  • So is my version of the periodic table wrong?

    那么元素周期表是错的吗?

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  • This kind of periodic orbit is only a phase in a comet's life.

    这种周期性轨道只是彗星生命中的一个阶段

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  • Periodic changes in Earth's orbit could affect Earth's climate.

    地球轨道周期性变化影响地球的气候

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  • Early versions of the periodic table had gaps, missing elements.

    早期元素周期表空缺缺少一些元素

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  • Professor Harrison, were you saying that the periodic table is predictive?

    哈里森教授周期表可以预测的吗?

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  • Melanomas are more common if you have periodic intense exposure to the sun.

    如果定期暴露强烈阳光照射下黑色素瘤常见

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  • The structure of the periodic table appeared to limit the number of possible elements.

    元素周期表结构似乎限制潜在元素的数量

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  • There is this group of about half a dozen right down the diagonal middle of the periodic chart.

    沿着周期表对角线中间大约包含六个元素的元素

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  • Of course, it was an element the periodic table let us to expect existed before anyone had found it or made it.

    当然发现制造,就是一种元素周期表使得我们期待其存在的元素。

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  • In fact, subsequent work has shown that in a periodic table, elements should not be ordered strictly by atomic mass.

    事实上随后研究已经证实元素应该元素周期表严格按照原子质量排序

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  • By isolating organisms completely from external periodic cues, biologists learned that organisms have internal clocks.

    通过生物体外部周期信号完全隔离生物学家了解到生物体内部的生物钟。

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  • Bone growth in reptiles is periodic in nature, producing a series of concentric rings in the bone, not unlike the growth rings of a tree.

    爬行动物骨骼生长本质上周期性的,在骨头产生一系列同心圆树木年轮一样。

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  • Yet Rampino and others question one of the traditionalists' basic assumption: the periodic occurrence of glaciation throughout Earth's history.

    然而皮诺其他人传统主义者基本假设提出质疑在整个地球历史中,冰川期周期性发生的。

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  • The close correspondence between the observed properties of gallium and Mendeleyev's predictions for eka-aluminum lent strong support to the periodic law.

    镓所表现出特性门捷列夫对“铝下元素”的预测紧密联系元素周期律提供了有力的支持

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  • In places, the water table is declining at a rate of a meter a year, necessitating the periodic deepening of wells and the use of ever-more-powerful pumps.

    一些地方水位每年一米速度下降,需要定期加深使用更强大的水泵。

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  • Warmer sea temperatures caused by climate change and periodic El Nio events have caused large areas of coral to be wiped out in so-called "bleaching" events.

    气候变化周期性厄尔尼诺现象引起海水变暖已经造成大面积珊瑚礁所谓的“漂白”事件中消失殆尽。

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  • Consequently, the timing and rhythms of biological functions must closely match periodic events like the solar day, the tides, the lunar cycle, and the seasons.

    因此生物功能时间节奏必须太阳日潮汐月球周期季节等周期性事件密切契合

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  • However, when diatoms are observed under constant conditions in a laboratory, they still display periodic behavior, continuing to burrow on schedule for several weeks.

    然而实验室恒定条件观察硅藻时,它们仍然表现出周期性行为继续按计划挖掘几个星期。

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  • Both chemists were sufficiently farsighted to leave gaps where their analyses of periodic physical and chemical properties indicated that new elements should be located.

    这两位化学家非常有远见,他们周期性物理性质化学性质进行分析,并在预示应该出现元素地方留下了空位

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  • Periodic surges of intense Iranian economic nationalism must be understood partly as a reaction to the close relations between British business in Iran and the British government.

    伊朗强烈经济民族主义的周期性高涨,一定程度必须理解英国伊朗商业英国政府之间密切关系反应

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  • Does that explain why it was missing in the periodic table?

    能解释为什么元素周期表中缺失吗?

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  • For example, tellurium comes before iodine in the periodic table, even though its atomic mass is slightly greater.

    例如元素周期表中,排在之前尽管原子质量略大一些。

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  • Let's continue our discussion now by talking about orbits, especially those of the so-called periodic-orbit comets.

    现在我们继续讨论谈谈轨道特别是那些所谓周期轨道彗星。

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  • Esplanade Company uses the periodic inventory method.

    散步路公司使用定期盘存方法

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  • The bordereaux are periodic reports or settlement statements.

    业务报表定期报告和解声明。

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  • The dangerous value of the control parameter led to surf-riding and the domain of periodic motion and surf-riding given.

    控制参数危险导致滑行给出了周期性运动滑行的范围

    精选例句

  • Why do we call it the Periodic Table?

    为什么我们周期表

    v.163.com

  • This is right off your Periodic Table.

    这个你们元素周期表下面应该有

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