Archaeologists have uncovered some ancient earthwork.考古学家发现了一些古代的土建工程.Square grid is a common method used to estimate earthwork quantity.方格网法是工程土方量计算中应用最为普遍的一种方法.Scope: Earthwork Construction Machinery Construction Earth...
建立SQL语句的时候使用参数集合.Use the Parameters collection when you build SQL statements.通过将变量名称置于赋值语句的左侧,可以在变量中存储值.Use the variable name on the left side of an assignment statement.如果长表达式在语句的中间,可以额外提出来.Factor out long expressions i...