您要查找的是不是：
- maintenance proof cycle 维护质量检查周期
- There is positive proof that he did it. 有确切的证据证明他做了此事。
- The onus of proof lies with you. 你有责任提供证据。
- The pedal of a cycle is attached to a crank. 自行车的踏板与曲柄相连。
- The machinery requires constant maintenance. 这些机器需要经常保养维修。
- A soldier's courage is put to the proof in battle. 士兵的勇气在战斗中得到考验。
- Can you produce any proof of your date of birth? 你能出示有关你的生日日期的任何证件吗？
- Make maintenance content, cycle and method. 制定设备级别保养内容、周期、方法。
- We now have the absolute proof of his guilt. 我们现在有他犯罪的确凿证据。
- The cheque will be cashed on proof of identity. 这张支票凭身分证件兑现。
- Maintenance of PC is in my element. 我对电脑的维修保养很在行。
- So they alleged, but have they any proof? 他们是这样宣称的，但他们有证据吗？
- His opinion is formed independently of any proof. 他的意见没有任何证据作基础。
- It's easier to cycle with the wind behind you. 顺风骑车省力。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- The shelter was proof against the bitter weather. 这个棚子可以避寒。
- He's taking classes in car maintenance. 他正在上汽车维修课。
- The seasons of the year make a cycle. 一年四季构成一个循环。
- Is your statement susceptible of proof? 你的说法能加以证实吗?
- The business cycle experienced a sudden down. 商业周期经历了突然的萧条。
