Birefringencemeter
双折射检查仪
🗣️ 情景例句
we can ship the goods one month ahead of time.
我们可以提前一个月起运。
May I ask you a question?
我能问你个问题吗？
In 1948, he went to Lake Kivu in the Congo to observe a new volcano which he later named Kituro.
1948年他去了刚果的基伍湖，对一座后来被他命名为基图罗的新火山进行观察。