您要查找的是不是：
- DDU directional Doppler ultrasound 方向性多普勒超声
- directional Doppler ultrasound, DDU 方向性多普勒超声
- periorbital directional Doppler ultrasonography 眼眶周围直接多普勒超声术
- She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
- I'll book you on a direct flight to London. 我将为你预订直飞伦敦的航班。
- The nonlinear problem of receiving circuit in directional Doppler ultrasonic blood flow velometer 关于方向性Doppler血流检测中接收线路非线性问题
- He has chosen the most direct route. 他选取了最直的路线。
- She's very direct, believes in speaking her mind. 她为人直率，喜欢有什么说什么。
- Can you direct me to the shoe department? 请告诉我卖鞋部在哪里。
- Be there a direct train for Beijing to Nanning? 从北京到南宁有直达车吗？
- Having no particular directional characteristics. 无定向的具有无特定方向的特征
- See that direct heat does not play on it. 当心别让它直接受热。
- It's a long way by road the train is more direct. 走公路很远--乘火车近。
- Would you please direct me to the zoo? 请问去动物园怎么走?
- My eyes were blinded by the direct rays of light. 在光线的直射下，我看不清楚东西。
- Her opinions are the direct opposite of mine. 她的意见与我的截然相反。
- She is in direct contact with the general manager. 她与总经理直接联系。
- I'm in direct contact with the hijackers. 机者保持著直接的联系。
- The army is under the king's direct command. 军队由国王直接统率。
- Give me a direct answer, and stop evade the issue. 给我一个直截了当的回答，不要回避这一问题。
