体大
- 与 体大 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The invention is mainly open end of a drill pipe thickening processing method, according to the use of drill pipe body known, drill pipe end thickening in the production of drill pipe body is an important influence the quality of the drill pipe links thickening process design determines much ...
该项发明主要是公开了一种钻杆管端加厚的加工方法,根据钻杆管体的使用情况可知,钻杆管端加厚在钻杆管体生产中是影响整个钻杆质量的重要环节,加厚工艺设计的好坏很大。。。
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Combining the fully stressed optimality criterion with finite element analysis, the material distribution is optimized after several iterations.
采用满应力准则法,借助有限元结构分析,经过少量迭代,建立优化的材料连续分布场,即类桁架连续体结构。由于首先建立的拓扑优化结构是各向异性连续体,从而得到更大优化空间。
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Results (1) Osteitis and destruction of end-plate showed long T1 and long T2.(2) Anterior and lateral abscess had long T1 and long T2 presenting even and structure-less signal.(3) The intervertebral discs showed normal or only degeneration at the early stage, and destroyed at later stage.(4) With Gd-DTPA enhancement, fibrotic granulation around abscess and destroyed area was well demonstrated.(5) Abscess in the bone and/or paraspinal abscess, destruction of end-plate were the important evidence for early diagnosis.
结果 (1)椎体骨炎及终板破坏呈长T1长T2信号,(2)椎旁或椎前冷脓肿呈长T1长T2均匀无结构信号,且上下跨越范围较大,(3)早期椎间盘信号正常或只出现退变,晚期则被破坏,(4)Gd-DTPA增强扫描可清楚显示冷脓肿周围纤维肉芽组织及椎管内侵犯,(5)骨内小脓肿和/或椎旁脓肿、椎体终板破坏是MRI诊断早期脊柱结核的重要依据。
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These sand bodies overlie the dark mud stone in Qingshakou, hydrocarbon generated in the dark mud stone migrates directly to the overlay Y1 sand body and finally hydrocarbon reservoirs are formed.
这些砂体直接覆盖在青山口组大套的暗色泥岩之上,青山口组地层暗色泥岩生成的油气直接有效地运移到其上覆的姚一段砂体之中,最终富集成藏。
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POMC neurons are medium and large sizes, displaying a quadrangular or multipolar perikaryon with a variable number of primary dendrites, well-ramified dendrites.
POMC神经元细胞体较大,成四边形或多极核周体,一级树突数量不定,且分支较多。
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RPLP0 gene encodes the acidic ribosomal phosphoprotein large PO subunit, which is a component of the 60S subunit.
RPLP0基因编码酸性核糖体磷蛋白大亚基P0,是核糖体60S亚基的组成成分之一。
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The invention discloses a method to integrate single CMOS with bulk silicon microelectromechanical system, its technical project: 1 forming isolating groove: adopting deep-groove etching, and SiO2 and polycrystal silicon filling to realize the insulation of MEMS structure and CMOS circuit; 2 making standard CMOS circuit; 3 using SiO2 and Si3N4 as mask, etching silicon on the back until exposing SiO2 at the bottom of the isolating groove, to complete the thickness control for MEMS silicon structure layer; 4 completing metalizing the CMOS circuit and masking the MEMS structure: MEMS structure region uses Al as mask and CMOS circuit region uses thick photoetching glue as mask, using DRIE to release silicon structure.
本发明公开了一种将单片CMOS与体硅微机械系统集成的方法,其技术方案为:1形成隔离槽:采用深槽刻蚀,SiO 2 和多晶硅填充,实现MEMS结构和CMOS电路的绝缘;2完成隔离槽后进行标准CMOS电路的加工;3用SiO 2 和Si 3 N 4 作掩膜,从背面腐蚀硅,直至暴露出隔离槽底部的SiO 2 ,完成MEMS硅结构层的厚度控制;4完成CMOS电路金属化和MEMS结构掩膜:MEMS结构区用铝作掩膜,CMOS电路区用厚光刻胶作掩膜,用DRIE释放硅结构。用本发明方法不仅获得了较大的质量块,而且用本发明较高的深宽比制作出的结构电容,同时实现了体硅微机械与CMOS电路的集成,显著提高MEMS传感器的精度和稳定性,具有前沿性和重要实用价值。
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A new method for measuring surface area of flatfishes was presented in this paper. Digital camera is used to capture digital images of flatfishes with a background of standard plotting paper, image processing softwares (Photoshop CS2 or Adobe Acrobat Professional) are used to get pixels per square centimeter and the pixels of flatfishes, then surface area of flatfishes can be calculated by these data. Compared with traditional method, results of surface area measuring of 30 turbot revealed that relative errors of Photoshop Method and Acrobat Method were -4.40% to 3.08% and -1.83% to 1.30%, respectively.
提出一种快速、准确测定鲆鲽类体表面积的新方法,利用数码相机拍照获取带有标准坐标纸背景的鲆鲽类鱼体数码图像,采用图像处理软件Photoshop CS2和Adobe Acrobat Professional分别获得单位背景面积和鱼体图像的像素数,通过两者的比例计算出体表面积。30尾大菱鲆体表面积的实测表明,与传统计数方格面积法的测量结果相比,Photoshop法相对误差为-4.40%~3.08%,Acrobat法相对误差为-
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The fern spore, the original cell of the gametophyte, carries out asymmetrical mitosis to produce a large cell and a small cell. The small cell geminates to a rhizoid by tip growth, and the large cell further divides and develops to become a prothallus.
蕨类植物孢子作为配子体的原始细胞,通过不对称的有丝分裂产生一大一小两个细胞,小细胞萌发出极性生长的假根,大细胞继续分裂发育为原叶体。
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Those may be the structure for pyrenoid photosynthesis. The starch sheath embedded the pyrenoid. The pyrenoid could be divided into three types according to their structure.
并观察到蛋白核与叶绿体基质有多处联系,蛋白核内的类囊体发生膨大,并在莱茵藻蛋白核中观察到有数个类囊体堆积,这些细微结构功能还不清楚,可能与蛋白核行使光合功能有关。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。