francium

It is evident in entries like francium, germanium, scandium, polonium, europium, californium, berkelium and americium.

这一点在钫、锗、钪、钋、铕、锎、锫、镅等元素的拉丁名上颇为明显。

3 ∶ 1 proportions for mixed sowing of elymus sibiricus+ bromus inermis, and elymus sibiricus+ agropyron cristatum, respectively, effectively increased soil nitrate-nitrogen content.

老芒麦+无芒雀麦、老芒麦+冰草3∶1的混播比例可以有效地增加土壤硝态氮含量。

the cesium-radon period also includes the lanthanides, and the period beginning with francium includes the actinides.

铯一氡周期还包括镧系元素，以钫开始的周期包括锕系元素。

Francium is the densest of the Alkali Metals and also radioactive.

钫是碱金属中密度最大的,具有放射性.

the results showed that no. 9 and no. 14 drought resistance are strong in 15 agropyron cristatum germplasm and materials.

试验结果表明：15份冰草种质材料中9号和14号的抗旱性较强；

It is referred that Agropyron cristatum can resist drought strongly and take adaptive ability.

研究表明,冰草对渗透胁迫有较强的适应能力,具有较强的抗旱性.

The half-life of francium is 22 minutes.

钫的半衰期是22分钟.