the element known meaning in English
已知的元素
Examples
- The periodic table now contains all the elements known to man arranged in their proper sequence
现在周期表包括人类已知的全部元素，这些元素按适当的顺序排列起来。 - Among all the elements known , carbon is unique because of the ability to bond with itself and with other atoms in endlessly varied combinations of chains and rings
在自然界中，碳是一种非常独特的元素。碳原子之间、碳原子和其它原子之间借助多种多样的成键方式可以形成形态、结构和特性各异的物质。 - I then thought that the greater activity of the natural minerals might be determined by the presence of a small quantity of a highly - radioactive material , different from uranium , thorium and the elements known at present
我随后想到天然矿石中较大的活性可能是因为其中含有少量的高放射性物质所致，这种物质不同于铀、钍或其他已知的任何元素。