您要查找的是不是：
- What I need is nothing but a sample. 我需要的不过是一件样品而已。
- The nurse took a sample of my blood for tests. 护士抽了我的血样去化验。
- Airmail revised price list but full range sample within fortnight. 航空寄上订正价格表，全套样品两周内寄出。
- unidirectional sample 单向取样
- His job is to sample products for defects. 他的工作是抽样检查产品的瑕疵。
- He sent me a sample copy of the book. 他寄给我一本样书。
- The reinforcement was unidirectional. 增强是单方向的。
- He dipped into the bag and brought out a handful of sample wheat. 他把手伸进袋里，取出一把小麦样品。
- Channels can be unidirectional or bidirectional. 通道可以是单向的或双向的。
- An electrical system fed by unidirectional voltage. 由直流电压供电的系统。
- A style or individual sample of writing. 笔迹个人的书法笔迹或风格
- First this is an unidirectional adjustment. 首先这是一次单向调节。
- Thousands of people have written in to us for a free sample. 现已有数千人给我们来信索要免费样品。
- I have forwarded you by rail the sample you write for. 我已经把您写信索要的样品通过铁路送给您。
- You must send some sample to the customer before you go abroad. 在你出国之前，应该先寄给客户一些样品。
- Conversion of alternating to unidirectional current. 整流交流电转变到单向电流
- The distributor look with favor on your sample shipment. 您发来的样货得到了经销商们的赞许。
- Write now to this address and we will send you a free sample by return. 按此地址函索即免费寄奉样品。
- Events in the world undeniably form a unidirectional sequence. 无可否认的，世界上发生的事件只有单向的顺序。
- You'd better give a sample of your ability or skill. 你最好用实例示范你的能力或技巧。
