Precalcic
a. (某些矿石)主要含钙的
🗣️ 情景例句
Everybody in Riverdale reads his paper.
Riverdale的每个人都看他的报纸。
Don't criticize him for his delay.
不要责备他的延误。
so every so often a sample is obtained with a coring bit.
因此时常要用取芯钻头取样。