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- A dynamical surface emission center model which can explain all observed phenomena in thermionic cathodes is proposed. 本文提出能解释热阴极中各种现象的动态表面发射中心模型。电子发射来源于一个原子集团。
- The SCP of backscattering signals approach the emissive center frequency with increase of ages. 随年龄的增大，质心位置越接近于发射超声的中心频率。
- The emission of visible light by a hot object. 白热光物体遇热发出可见光
- He moved the table over to the center of the room. 他把桌子移到房间中心。
- The land is destined for a new shopping center. 这块地已被划作为营建一个新购物中心之用。
- His activities in London center around this spot. 他在伦敦的活动以这个地点为中心。
- The amount or rate of emission or ejection. 排放量流量、流速，或排出量，排出的速度
- The strikers paraded through the city center. 罢工队伍游行穿过市中心。
- A system of roads radiates from the town center. 一个道路网从镇中心向四面八方伸展出去。
- The new hospital will be sited at the city center. 新医院将座落在市中心。
- New York is a great financial center. 纽约是一个重要的金融中心。
- The center of the sun is exceedingly hot. 太阳的中心极其热。
- Our city is the industry center of the country. 我们城市是全国的工业中心。
- They made a detour to avoid the town center. 他们绕道而行,避开市中心。
- A circle without a center is inconceivable. 一个没有圆心的圆是无法想像的。
- Emission and propagation of energy in the form of rays or waves. 发射以光线或波的形式发出和传播能量
- We decided to skirt round the town center. 我们决心绕过市中心。
- To avoid the city center, turn right here. 如果要避开市中心，请从这里向右转弯。
- One set of provisions tightens emission standards. 一套使排放标准更加严格的规定。
- The company owns a famous department store in the center of London. 这家公司在伦敦市中心拥有一家很有名气的百货商店。
