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- On the basis of the introduction of STEL-1479 and PIC16C73A,The middle wave frequency synthesizer which is based on DDS and controlled by single chip is designed. 在介绍DDS芯片STEL-1479和PIC16C73A单片机的基础上,设计了一种利用单片机控制DDS芯片实现的中波频率合成器。
- Although the middle wave and long wave transmittance are all increased after multilayer antireflection films were coating on CVD ZnS,the technique of coating must be improved further. 镀多层防反膜以后，中、长红外波段透过率均有所提高，但镀膜技术还有待改进。
- Keywords Vitiligo;UVB;Middle wave;Narrow-band;Halometasone; 白癜风;紫外线;中波;窄谱;卤米松;
- I'm sick of being piggy in the middle all the time. 我腻烦了总是夹在争吵双方的中间。
- He planted roses in the middle of the garden. 他在花园中间种上玫瑰。
- He admires the chivalry of knights in Middle Ages. 他很佩服中世纪武士的侠义精神。
- It has its roots deep in the Middle Ages. 它起源于遥远的中世纪。
- My wheel twisted off in the middle of the car race. 我的车轮子在汽车比赛中途脱掉了。
- Infrared apparent radiation model in short and middle wave for low cloud 低云中短波红外表观辐射模型研究
- We have studied botany in our middle school. 我们在中学的时候就学过植物学。
- There are 300 students or so in this middle school. 这所中学大约有300个学生。
- He was appointed the rector of the middle school. 他被任命为那所中学的校长。
- She has dropped out in the middle of the race. 她中途退出比赛。
- We've learned algebra in middle school. 我在中学就学过代数学。
- He broke off in the middle of a sentence. 他一句话只说了一半就停住了。
- He is standing in the middle of the classroom. 他正站在教室中间。
- He is studying at a junior middle school. 他正在上初中。
- We had studied physiology in middle school. 我在中学就已经学过生理学。
- The sheets have worn thin in the middle. 床单的中间部分磨薄了。
- Here's our file on the Middle East. 这是我们关于中东的案卷。
