Probolog
电感式探伤仪, 涡流式探伤仪, (检验热交换器管路缺陷的)电测定器
🗣️ 情景例句
How was it?
怎么样？
What's this?
这是什么？
Yet a great many processes depending on such research are sought for with complete secrecy until the stage at which patents can be taken out.
然而，依赖这种研究的很多工艺程序是在完全保密的情况下进行的，直到可以取得专利权的阶段为止。