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1)  recessed gate
凹栅
1.
Compared with the recessed gate structure, buried-gate structure device reduced the influence of surface-trap on the current and achieved larger saturated leak current.
凹栅结构相比,埋栅结构的器件降低了表面陷阱对电流的影响,饱和漏电流提高了37%,而且阈值电压的绝对值增大、跨导升高,对提高4H-SiCMES-FET器件的输出功率起到一定的作用。
2)  concave grating
凹面光栅
1.
In order to rule the concave grating with a long focal length,a cutter frame with elastic thimble mode was designed and manufactured.
对大曲率半径(即长焦距)金属基底凹面光栅的机械刻划技术做了研究。
2.
Based on the principle of color measure, the mini-spectrometer uses concave grating as its light splitter, fiber as its color picker and liner CCD as its detector.
它根据分光测色的原理,使用 型凹面光栅作为其分光器件,石英光纤做测色探头,线阵CCD为探测器。
3.
This paper presents the principle, structure and aberration-corrected designing of a flat focal field concave grating spectrograph.
介绍了用于 X光能谱测量研究的平焦场凹面光栅光谱仪的原理、结构及象差校正的设计方法。
3)  concave gratings
凹光栅
4)  varied spacing concave grating
变栅距凹面光栅
1.
A small sized flat field grating spectrograph was developed by using a varied spacing concave grating with a nominal groove spacing of 1/1200mm and a radius of curvature of \{5649 mm.
采用名义栅距为 1/12 0 0mm、凹面曲率半径为 5 6 49mm的变栅距凹面光栅 ,研制了一种小型平焦场光栅光谱仪。
5)  Concave spherical mesh
凹球面网栅
6)  cylindrical concave grating
凹柱面光栅
1.
Based on the theory of the ellipsoidal grating, the idea of cylindrical concave grating is put forward in this paper, the diffracting properties and collecting light ability of cylindrical concave grating are studied.
结果表明;在掠入射条件下凹柱面光栅具有与四球面光栅相似的衍射特性,但四柱面光栅可以方便地沿光栅母线方向划分成若干相同部分独立工作,因此,安装水平隔板的掠入射凹柱面光栅单色仪可以用于托卡马克等离子体的真空紫外(VUV)光谱时空分辨测量。
补充资料:凹模壁厚及凹模垫板尺寸

型腔壁部投影面积            壁            厚,        毫          米
F, 厘米2              h1           h2         h3          h4         h5 
<5                   15~20        30~40      <=10        15~20      30~40
>5~10                20~25        40~50      10~15       20~25      40~55
>10~50               20~30        50~60      15~20       20~30      55~65
>50~100              30~35        60~75      20~25       30~40      65~70
>100~200             35~40        75~85      25~30       40~50      70~75
>200                  >40          >85       30~35       50~60       >80


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