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In this paper the floral ontogeny and the ovary development of Rivina humilis L.were observed.The results showed that (1) the tepal primordia initiated in 2/5 spirals.The abaxial one initiated first,then the adaxial one,finally the lateral two initiated n
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对数珠珊瑚的花器官发生和子房的发育过程进行了观察.结果表明:(1)数珠珊瑚花被呈2/5螺旋状发生,远轴侧的1枚先发生,其次为近轴侧的1枚发生,最后侧方的2枚花被几乎同时发生,第3枚花被在靠近第1枚的位置发生,第2枚和第3枚之间有1个空隙;(2)4枚雄蕊是同时发生的;(3)心皮发生于分生组织的远轴侧,心皮原基形成后,向上向轴生长,在子房成熟前在近轴侧非正中位形成1个孔,该孔为心皮最终愈合前的残迹,到子房成熟时,因子房的生长孔被挤压缩小,在进一步的生长过程中愈合.子房由1枚心皮构成;(4)从子房发育过程的切片 |
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In this paper the formation mechanisms of needle-like mullite Ⅱin porcelain bodies were discussed,and nesulted in a new forming mechanism of mulliteⅡ.It is indicated that the melt is necessary condition to forming needle-like mullite Ⅱin porcelain bodies.
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通过对瓷坯中二次针状莫来石形成机理的讨论,提出了新的二次莫来石形成机理,并说明了熔液是二次莫来石形成的必要条件。 |
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In this paper the friction piles are used in Zipingpu Multi-purpose Dam Construction Project, the spillway in the side slope is covered with overburden, the horizontal area is from SP.0+200m to SP.0+280m, the elevation is about from EL.810m to EL.950m, th
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摘要紫坪铺水利枢纽工程溢洪道桩号0+200~0+280、高程810~950m范围的内侧边坡为覆盖层边坡,坡体下部有较为完整坚硬的岩石,具备提供足够锚固力的条件,在适当的位置可以考虑设置抗滑桩,再通过适量的开挖提高边坡稳定性,或将滑坡体上部不利于稳定的荷载挖除,对于陡坡的坡面可以将坡削缓,则效果会更好。 |
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In this paper the knitting principle and loop-forming process of stitch-bonded fabric knitted on flat knitting machine are conceived with the keys methods in this flat knitting put forward.
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摘要文中构思了横机缝编织物的编织原理以及成圈过程,提出横机上编织需解决的关键问题及其解决方案,验证了横机上编织缝编织物的原理。 |
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In this paper the local existence of solutions for a class of strongly damped wave equations is considered, and the global existence and blow-up of solutions based on the potential well theory is studied.
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摘要讨论一类强阻尼波方程解的局部存在性,并利用势井理论研究解的整体存在性和爆破性。 |
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In this paper the necessity, urgency, education goal and course system of the professional direction of cardiopulmonary bypass are discussed, and the proposition to establish the professional direction of cardiopulmonary bypass has been made.
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本文就在麻醉学中设置体外循环学方向本科教育的必要性、迫切性和体外循环学方向本科教育的培养目标以及课程体系进行了论证,并对创设体外循环学方向本科教育提出建议。 |
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In this paper the new idea and present research status of low cost manufacturing technology for carbon fibers were briefly introduced, including cost analysis of carbon fibers; Low-cost carbon fiber development program in USA, the new technologies that ar
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摘要本文介绍国外在碳纤维低成本制备技术的新思路及其研究的现状,包括碳纤维成本分析、美国的低成本碳纤维研制计划、在原丝、预氧化及碳化等方面当前正在研究开发的新技术。 |
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In this paper the new progress in carbon fibers and composite materials in Mitsubishi Chemical Corporation, Japan are briefly presented.
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本文很需要介绍日本三菱化学公司碳纤维及其复合材料的新发展。 |
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In this paper the new progress in carbon fibers and composites products in torar, japan are briefly presented.
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本文简要介绍日本东丽公司碳纤维及其复合材料制品的新发展。 |
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In this paper the operating principle of the design is clearly elucidated, and its effectiveness is proved by simulation.
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文中分析了保护装置的运行原理,并进行了仿真研究,结果表明其效果良好。 |
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In this paper the parameter imbedding algorithm is introduced.
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本文介绍了一种参数插入算法。 |