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- ladder passband filter 梯形带通滤波器
- Low Temperature Co-fired Chip Ceramic Microwave Passband Filter 低温共烧片式陶瓷微波带通滤波器
- Analysis on an Active Passband Filter with Multiple Path Feedback 多径反馈有源带通滤波器分析
- Based on the characteristics of EBG and DGS, several new type practicable compact stopband and passband filters are proposed and FDTD analysis of one Parallel EBG microstrip line is studied in this dissertation. 本文的主要工作是根据电磁带隙结构和缺陷地结构的特点，提出了几种实用的新型小型化带阻和带通滤波器，并用FDTD法对一种平行结构的EBG微带线做了分析和研究。 本文主要包括以下内容：
- Please go down the ladder and chuck up my hat. 请下梯子把我的帽子扔上来。
- She was badly hurt when she fell from the ladder. 她从梯子上跌下来，伤得很厉害。
- Please hand the basket up to Father on the ladder. 请把篮子递给梯子上的父亲。
- This ladder is riddled with woodworm. 这个梯子已经让蛀虫蛀了很多洞。
- Be careful not to fall off the ladder. 当心别从梯子上掉下来。
- Because of the frequency response around passband of ladder type SAW filter is self-matching, the devices don t need external matching network. 因为由表面声波谐振器接成的梯型滤波器，其在通带频率时具有自我匹配的特性，所以不需要额外的匹配电路。
- He is too timid to get up to the top of the ladder. 他太胆小爬不上梯子的顶端。
- Have you any tights that won't ladder? 有没有不易抽丝的裤袜?
- It's considered unlucky to walk under a ladder. 从梯子下面走过被认为是不吉利的。
- You need to filter the drinking water. 你需要把饮用水过滤。
- Hard work is often a ladder to success. 发奋工作常是通向成功的阶梯。
- He climbed up the ladder, but soon got down. 他爬上了梯子，但不久就下来了。
- A filter traps dust from the air. 过滤网可存住空气中的尘埃。
- The news of the defeat started to filter through. 战败的消息开始传出来。
- Diligence is often a ladder to success. 勤勉常常是通往成功的阶梯。
- May we have the loan of your ladder? 我们可以借用一下你的梯子吗?
