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- quadratic null constraints 二阶零点
- If a NOT NULL constraint is specified, then the column must have a default value other than NULL. 如果规定一个不允许有空值是一个约束，那么字段必须有一个不同于空值的默认值。
- A computed column cannot be used as a DEFAULT or FOREIGN KEY constraint definition or with a NOT NULL constraint definition. 计算列不能用作DEFAULT或FOREIGN KEY约束定义,也不能与NOT NULL约束定义一起使用。
- The state or quality of being null. 无效无效的状况或性质
- Free from traditional social or moral constraints. 任意的不受传统的社会或道德限制的
- Soon tired of the constraint of military life. 很快厌倦了军事生活的约束
- The act of making null and void. 废除使 ... 作废和无效
- Not in confinement or under constraint; free. 自由不受约束的或不受限制的; 自由的
- Their difference is a quadratic residue of 17. 它们的差是17的平方剩余。
- The contract was null and void because it was not signed. 这个合同无效，因为它尚未签字。
- The branch of algebra that deals with quadratic equations. 二次方程式论处理二次方程式的代数学的分支
- The court ruled that the claim was null and void. 法庭裁决此项要求无效。
- Ignored all moral constraints in his pursuit of success. 在他追求成功的过程中忽略了一切道德约束
- Some quadratic equations have no real roots. 某些二次方程没有实数根。
- She showed constraint in the presence of the strangers. 她在陌生人面前显得很拘束。
- The marriage was declared null and void. 婚姻已宣告无效了。
- X2+3X+2=12 is a quadratic equation. X2+3X+2=12是一个二次方程式。
- The null subset corresponds to the term 1. 空集则对应于常数项1。
- Quadratic approximations in two dimensions. 二维中的二次逼近法。
- A null reference pointer was passed to the stub. 向占位程序传送了空的索引指针。
