您要查找的是不是：
- The state or quality of being null. 无效无效的状况或性质
- A display device that uses a cathode ray tube. 一种使用阴极射线管的显示装置。
- If took ten men to wrestle the device into place. 用了10个人才把那台装置挪动到位。
- The act of making null and void. 废除使 ... 作废和无效
- A device used to modulate an electromagnetic wave. 调制器用以调制电磁波的装置
- The contract was null and void because it was not signed. 这个合同无效，因为它尚未签字。
- She got the information by some device. 她运用某种手段获取了情报。
- The court ruled that the claim was null and void. 法庭裁决此项要求无效。
- This is a device for squaring the circle. 这是一个不可能实现的方案。
- Let's put the new device to the test now. 现在让我们现在来试验这部新装置。
- The data logger device has been fitted to ship's engine room. 数字记录仪装置已安装在船只的机舱里。
- The device had undergone extensive testing. 这种装置经受过广泛的试验。
- The marriage was declared null and void. 婚姻已宣告无效了。
- A device used to raise the nap on a fabric. 起毛机一种用于使纤维起绒毛装置
- The null subset corresponds to the term 1. 空集则对应于常数项1。
- An electronic device amplified the speaker's voice. 电子设备放大了演讲人的声音。
- A null reference pointer was passed to the stub. 向占位程序传送了空的索引指针。
- A device for equalizing pressure or strain. 均衡器用来使电压或电流保持平稳的设备
- A device for indicating wind direction. 风标用来显示风向的设施
- The agreement was declared null and void. 这个协议被宣布无效。
