D-block element
[化] d区元素
🧩 词语组成解析
block
[blɑk]
n. 块;街区;<英>大楼，大厦;障碍物，阻碍;
vt. 阻止;阻塞;限制;
element
['ɛləmənt]
n. [化]元素;要素;原理;[电]电阻丝;
🗣️ 情景例句
Does this come with a certificate of authenticity?
这有鉴定证明吗？
How did you go?
你怎么走？
so every so often a sample is obtained with a coring bit.
因此时常要用取芯钻头取样。