If you know a man's last name, address him as 'Mr.'.
如果你知道一个男性的姓, 应该用 'Mr。' 来称呼他。
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。