拥有国际上最先进的钢 格板 自动压焊机.The company has held the advanced international automatic pressure welder of Steel Grating ( steel plate ) .我发现两种运用格板和表格将明文编码与解码的方法.I found two ways to employ the grilles and tables to encode and deco...
书后有注解。There are explanatory notes at the back of the book.把你的答案同书后的答案核对一下.Check your answers with the key at the back of the book.这本教科书里要使用的词汇表印在书后.The vocabulary used in the course book is printed at the back....