periodic

相关例句

• Of course, it was an element the periodic table let us to expect existed before anyone had found it or made it.(当然，它在被人发现或制造前，就是一种元素周期表使得我们期待其存在的元素。)
• Why do we call it the Periodic Table?(为什么我们叫它周期表？)
• 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.(爬行动物的骨骼生长在本质上是周期性的，在骨头上产生一系列的同心圆，就像树木的年轮一样。)
• The bordereaux are periodic reports or settlement statements.(业务报表是定期报告或和解声明。)
• Periodic changes in Earth's orbit could affect Earth's climate.(地球轨道的周期性变化会影响地球的气候。)
• Periodic checks are carried out on the equipment.(设备定期进行检查。)
• 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，生物功能的时间和节奏必须与太阳日、潮汐、月球周期和季节等周期性事件密切契合。)
• Yet Rampino and others question one of the traditionalists' basic assumption: the periodic occurrence of glaciation throughout Earth's history.(然而，兰皮诺和其他人对传统主义者的一个基本假设提出了质疑：在整个地球历史中，冰川期是周期性发生的。)
• 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.(在一些地方，水位正以每年一米的速度下降，需要定期加深井并使用更强大的水泵。)
• 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，特别是那些所谓的周期轨道彗星。)