灵敏 sensitive; keen; quick; agile; acute 对音乐感受灵敏的耳朵 a quick ear for music; 动作灵敏 quick of foot; 反应灵敏的温度计 a sensitive thermometer; 灵敏的头脑 quick-witted; 这架仪器很灵敏。 this instrument is highly sensitive. 狗的嗅觉很灵敏。 dogs have an acute sense of smell
位置 1.(所在或占的地方) seat; place; location; site 大家都按指定的位置坐了下来。 everybody took their places.2.(地位) place; position 她曾是个在政府中占有重要位置的女人。 she was a woman of high position in the government.3.[航] position
The research of positron imaging systems can be divided into two parts : imaging instrumentation and image reconstruction , which are the main interest of this thesis . the bgo ( bismuth germanate ) scintillation crystal coupled with a position sensitive photomultiplier tube ( ps - pmt ) h7546 are used to build the y - rays detector 我们设计了以闪烁晶体作为成像前端,与多阳极位置灵敏型光电倍增管相耦合的射线探测器,具体为bgo ( bi _ 4ge _ 3o _ ( 12 ) ,锗酸铋)晶体、 hamamastu的h7546光电倍增管。