Sodium pertechnetate
[化] 高锝酸钠
🧩 词语组成解析
sodium
['sodɪəm]
n. <化>钠(11号元素，符号 Na);
高锝酸盐
🗣️ 情景例句
A downpour like this never lasts long here at this time of year.
这里每年这个时间象这样的大雨不会下得很久的。
Troubles never come singly.
祸不单行。
From 1830 onwards in the USA and from about 1870 in Canada, settlers began to move westwards and to take possession of the plains as their own.
美国自1830年起，加拿大从1870年左右起，殖民者开始向西迁移，并把平原据为己有。