查询词典 conic section

If a phototypesetter is an intermittence type, the memory of controller is used only to buffer a section and the buffer of whole page lattice is unnecessary. If a phototypesetter is an uninterruption type, a section of lattice is only generated and buffered for every time and then be converted into black-white sectional information, whose information quantity is much less, by microprogram for buffering whole printed sheet. On scanning, the black-white sectional information is real-restored into lattice to output.

当照排机是"走走停停"类时，控制器的存储器只需缓冲一段，而不必缓冲整版点阵；当照排机是"不许停顿"类时，则用分段方法每次只生成一段点阵并缓冲，然后用微程序把这一段点阵转换成信息量少得多的黑白段信息作整版缓冲，扫描时在实时下把黑白段信息复原成点阵输出。

The paper firstly examined the mechanical characteristics of wood samples at micron scale, which provided some theoretical basis for the application of wood microtome section to study the in-tree variation of longitudinal mechanical properties of tracheids. In chapter 3, microtension of wood microtome section is for the first time used to explore the in-tree variation of longitudinal MOE of tracheids, meanwhile the size effect of mechanical properties of wood at micron scale is taken into count.

本项研究正是基于以上考虑而提出的，首要目标是提出能快速评价管胞纵向力学性质的实验技术，并以此研究了人工林杉木管胞纵向力学性能的株内变异规律；目的之二是从实验和理论的角度研究管胞细胞壁力学性质的主要影响因素，为树木木材品质的基因改良提供量化的目标和指标。

RT-PCR was applied to detect changes of hepatic hepcidin gene expression on model different stage. Bone density was detected and decalcification bone microtome section and hepatic histological section were observed and analyzed on the 14th day. Results Compared with control group, hepatic hepcidin gene expression of test group on different stage had obvious differences.

d每天灌胃，14d后形成骨质疏松模型；在实验组中采用RT-PCR方法分别观察灌胃第1、3、5、8、9、10、12、14d肝脏铁调素基因表达变化；要第14d还检测大鼠骨密度、分别脱钙骨切片、观察肝组织切片。

The prestressed concrete simple beam compares reinforced concrete beam to compare, the merit includes: Uses the high marking concrete, section minification, the dead weight reduces, may increase the spanning ability; Uses the high strength steel bar, may save the steel products; But raises the sorghum body large scale the crack resistance, increases beam's durability, the concrete total cross-section bearing, has fully displayed the concrete resistant to compression performance superiority, also enhanced Liang's rigidity.

预应力混凝土简支梁较钢筋混凝土梁相比，优点有：采用高标号混凝土，截面尺寸减小，梁体自重减轻，可以增大跨越能力；采用高强度的钢筋，可节约钢材；可大幅度提高梁体的抗裂性，增加梁的耐久性，混凝土全截面受压，充分发挥了混凝土抗压性能的优势，也提高了梁的刚度。

Combined with subsea tunnel engineering at eastern route way in Xiamen,the minimum rock covering thickness of subsea tunnel,water pressure design values,section optimization of lining structure and waterproof and drainage project,construction measures throughout bad subsea geology section,such as fault,solution groove,necessity of service tunnel setting were analyzed.

结合厦门东通道海底隧道工程，对海底隧道最小岩石覆盖层厚度、水压力设计值的确定，衬砌结构断面优化与防排水方案，穿越海底不良地质段的施工措施及服务隧道设置的必要性问题进行了分析。

The invention relates to a microlens configuration having a substantially circular form is constituted of a part of one circle or aspheric curve at any section when a section is taken at a face which is vertical to a major axis or a minor axis of the microlens configuration.

本发明涉及一种具有基本上环形的微型透镜结构，当在垂直于所述微型透镜结构的长轴或短轴的任何一个面取截面时，该结构由在任何截面的圆形的一部分和非球面曲线构成。

In order to apply the traditional numerical method to approximately calculate heat and moistness load, thedesigners often change the vaulted section of the Underground Engineering to rectangular section with the same perimeter.

为近似计算工程的热湿负荷，通常将地下工程拱形结构的断面等周长地简化为矩形断面。

These characteristics of polylactide fiber promote its applications in the areas of fibers and nonwovens, And polylactide fibers can be made to the circular cross section of monofilament or multifilament、trilobal cross-section BCF (can be used for weaving carpets and blankets)、crimp or curly short fiber、the two-component fibers、spunbonded nonwovens and meltblown nonwovens, etc.

这些特性刺激了聚乳酸纤维在纤维和非织造布领域的应用，并且聚乳酸纤维可以制成圆截面的单丝或复丝、三叶形截面的BCF、卷曲或非卷曲的短纤维、双组份纤维、纺粘非织造布和熔喷非织造布等，这使聚乳酸纤维在服装市场、家用及装饰市场、非织造布市场、双组份纤维领域、卫生及医用等领域有潜在的应用前景。

The 3-D multigroup P3 neutron transport Monte-Carlo code MCMG was developed by adding functions and renewed edition. It can equip various microscopic or macroscopic cross-sections. The cross-section input was simplified. The edition was developed from Ⅰ to Ⅱ. The multigroup cross-section was produced by ENDF/B-Ⅶ library.

三维多群P3中子输运蒙特卡罗程序MCMG通过版本更新和功能扩充，能够配备各种多群微观、宏观截面库，截面输入文件进一步简化，版本从Ⅰ发展到Ⅱ，参数更新到ENDF/B-Ⅶ库。

There are data to show that: caesarean section and natural childbirth children children no difference in terms of intelligence, but the section of the child's ability to adapt than natural childbirth poor child's ability to adapt.

有资料证明：剖腹产的孩子与自然分娩的孩子在智力上并无差异，但剖腹产的孩子的适应能力要比自然分娩的孩子的适应能力差。

In other research, chondroitin is being investigated for use in several other conditions.

在其它研究，软骨素被调查用於几个其它情况。

They would make fun of him for having to work.

他们拿他的工作来开玩笑。