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- In the case of reflection, this symmetry depends on whether a quarter wavelength fits an even or an odd number of times in the layer thickness. 而在反射的情况下,这一对称性由薄膜厚度为1/4波长的奇数或偶数倍决定。
- A quarter of the area is covered with virgin forest. 四分之一的地区都是原始森林。
- Dan had a quarter but he went broke matching pennies with Fred. 丹原来有2角5分钱,但和弗雷德赌分币时,全部输光了。
- No more than a quarter of your income should go in rent. 你的收入用于房租不应超过四分之一。
- The flight was put off about a quarter, because of grind fog. 由于地面有雾,这次班机推迟刻钟。
- He pays only a quarter of the normal fare because he work for the airline. 因为在航空公司工作,他仅付了正常票价四分之一的票款。
- He was waiting for a quarter of an hour. 他等了一刻钟了。
- She deposited a quarter and pushed the button. 她往自动售货机投进一次2角5分硬币,然后揿了一下按钮。
- He pays only a quarter of the list price. 他只付了四分之一价目表的定价。
- A quarter of a pound of tea. And a tin of tobacco. 四分之一磅茶叶。一听烟丝。
- We all pitched in a quarter to buy Joe a present. 我们每人捐献25美分买一份礼物送给乔。
- He paid only a quarter of the list price. 他只付了四分之一价目表的定价。
- I go to bed at a quarter to ten. 我九点三刻上床。
- I knocked at your door for a quarter of an hour. 我敲你的门敲了15分钟。
- I lost my head in a quarter of a minute. 最初我很狼狈。
- He slipped the porter a quarter. 他偷偷地塞给搬运工人两角五分钱的硬币。
- A gill is equal to a quarter pit. 一及耳等于四分之一品脱。
- That would be a quarter to two in the afternoon. 13点45分,就是下午两点差一刻。
- The train leaves in a quarter of an hour. 火车在一刻钟后离开。
- Insert a quarter into the slot and try again. 请往投币口投一个25美分的硬币,然后再拨一下。