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- The deficiencies and limitation exist in the traditional Element's Periodic Law, which belo... 本文论证了建立元素立体周期律的可能性和必要性,弥补了元素平面周期律的缺陷和局限性。
- This Russian chemist is famous for his formulation of the periodic law and the publishment of the first periodic table, a classification of the elements in 1869. 这位俄国化学家于1869年建立了元素中期分类法，并就此发表了世界上第一份元素周期表。
- According to the periodic law, based on annilar periodic table and some elemental place being changed,designs a three-dimensional trigonal taper of the elemental periodic table. 根据元素周期律，以平面环形元素周期表为依据，改变部分元素的位置，分别以主族、副族、内过渡族为一个侧面，设计出一种立体的三角锥元素周期表模型。
- The periodic table can not only depiet the objecive law of the element periodic law quite well, but also fully reprcsent main group element in close relationship with subgroup clement, thus expressing the duality of cach element. 该表不仅能很好地反映出元素周期律的客观规律,而且能充分地体现出主族元素和副族元素之间的密切联系,从而表达出每个元素的两重性。
- mendelev periodic law of elements 门捷列夫元素周期律
- periodic law of (chemical) elements [化] 元素周期律
- Englightenment from Discovery of Periodic Law of Elements 元素周期律发现的启示
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- The "Periodic Law" of Rise and Fall of Dynasties in Ancient China 中国古代王朝盛衰兴亡的"周期率"
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- He had to decide within a given period. 他得在一定时间内作出决定。
- She has a detailed knowledge of this period. 她对这段时期的情况了解地相当详细。
- In that period auto sales hit a14-year low. 这时期汽车销售量达到14年来最低水平。
- In this period, unemployment reaches record levels. 这段时间的失业人数又达到了创纪录水平。
- Which period of history are you studying? 你正在学哪一段历史？
- The Octet Periodic Law of Natural Numbers and the Four Theorems of Diophantus 自然数八度周期律暨丢番图四定理
- Can you tell me the time period when it was stolen? 能不能告诉我大概什么时候被偷的？
- Chaucer wrote in the late mediaeval period. 乔叟写作的时代是中世纪末。
