ionium

英式音标：[aɪ'əʊnɪəm]

美式音标：[aɪ'oʊnɪrm]

词义：

n.

嗳，钍（一种化学元素）；

用法：

权威例句

ionium

Ionium dating of igneous rocks

Ionium Determination in Deep-Sea Sediments

Ratio of Ionium to Uranium in Coral Limestone

Analysis of Ore Residues for Ionium and Protactinium1

Radiochemical Determination of Ionium in Uranium Fluorination Ash

Geochronological studies of deep sea sediments by the ionium/thorium method

The transport and deposition of uranium, ionium and radium in rivers, oceans and ocean sediments ☆

Comparison of sedimentation rates measured by paleomagnetic and the ionium methods of age determination

Studies of the Solvent Extraction Behavior of the Transition Elements. II. Isolation of Gram Quantities of Th230 (Ionium) from a Pit...

造句：

1. There is a general presumption that the doctor knows best.

一般人都以为医生最了解情况。

来自《权威词典》

2. The presumption is that he had lost his way.

推想起来,他当时是迷了路.

来自《现代英汉综合大词典》

3. I don't think that's a false presumption.

我认为那并不是错误的推测.

来自《简明英汉词典》

4. They may be hoping to invert the presumption that a defendant is innocent until proved guilty.

他们可能有望颠覆“被告在证实有罪之前是无辜的”这一假设。

来自柯林斯例句

5. They were angered by his presumption.

他们对他的放肆感到非常愤怒。

来自辞典例句

[ presumption 造句 ]