查询词典 conic section

The entrance section of FuXi Double-arched Tunnel is modeled in the fact of factual shallow buried and unsymmetrical pressure condition. Adopting the three heading construction method to simulate twelve kinds of construction projects, confirm reasonable construction orders and left and right tunnel face interval, systematically analyze and research the changing law of the tunnel deformation and surrounding rock stress in soft and cracked condition of surrounding rock,bring forward pertinent advices against construction disease; Build the deep buried tunnel model in middle section of tunnel , separately adopt the central heading bench cut benching method and the central heading full cross method to simulate ten kinds of construction projects, establish the reasonable construction orders, sidestep length and tunnel face interval, which are due to the deep buried tunnel, systematically analyze and research the change law of the tunnel deformation and surrounding rock stress in the section with good surrounding rock condition, bring forward the reasonable construction projects which can make sure of construction safety and save construction time; Because the central wall is disturbed many times during constructing process, its displacement and stress distribution is very complex.

富溪隧道进口段依照实际的浅埋偏压状况建立模型，采用三导洞法开挖模拟了12种方案，确定了合理的施工顺序和左右主洞掌子面错距，系统地分析研究了软弱破碎围岩浅埋偏压段施工的隧道变形和围岩应力变化规律，提出了防止施工病害的针对性建议；洞身段按深埋隧道建立模型，分别采用中导洞台阶法和中导洞全断面法模拟了10种方案，确立了适合深埋隧道的合理施工顺序、台阶长度和掌子面错距，系统分析研究了围岩较好深埋段施工的隧道变形和围岩应力变化规律，提出了兼顾施工安全和节省工期的合理施工方案；由于受到多次扰动，中隔墙的位移和应力变化规律较为复杂，通过对各种方案的对比分析，得出了中隔墙在施工不同阶段的位移变化规律、应力变化规律和应力分布规律，尤其对于浅埋偏压段隧道施工时中隔墙位移和应力变化规律做了深入研究，提出了合理的施工建议。

Company has hammered at research and development of damping section of papermaking machine since its establishment , after over 20 year's market exploration and continuous improvement, prominent achievements have been got in design, processing and reform of head box, screen section and pressing section ,it is through the first provincial identification and batch production dehydration equipment manufacturers,?

公司从成立伊始就致力于纸机湿部的研制与开发，经过二十多年的市场探索和不断改进，在流浆箱、网部及压榨部的设计、加工与改造等方面取得了卓越的成绩，是首家通过省级鉴定和批量生产脱水器材的厂家，产品载入科学技术文献出版社的《中国技术成果大会》（1993第15期）。

Guarding is described further in Section 2.2.1 for voltmeters, Section 2.3.1 for ammeters, and Section 2.4.2 for ohmmeters.

有关电压表、安培计和欧姆计的保护技术将在第2.2.1、2.3.2和2.4.2节进一步介绍。

The results show that the ultimate stability bearing load by nonlinear analysis is close to the test load, they only have 10% deviation. For steel bridge towers, the correlation of the panels in the section of rectangle with chamfers is more obvious than that in the section of rectangle. If the four angles of the rectangle section were cut off, a panel with the smaller ratio of width to thickness forms, which can supply effective constraint to other weak panels with the larger ratio of width to thickness.

结果表明：第2类稳定计算得到的失稳极限荷载与实测荷载较为接近，两者相差10%；带切角矩形截面钢桥塔较矩形截面钢桥塔板件间的相关作用更加明显，对矩形截面钢桥塔进行切角，形成宽厚比较小的壁板，可以对宽厚比较大的弱板提供有效约束。

The high risk zone mainly contributes in the fore section of study area, which is 15% of the whole area. This zone is the key limit zone of human activity. The middling risk zone mainly concentrates on mid section, which is 25% of the total area. This zone will be exploited with relevant engineering and non-engineering steps to reduce hazard. The low risk zone contributes in the mid-back section, 60% of study area. It is the most-making zone.

高风险区主要集中在研究区前缘，约占总面积的15％，范围较稳定性差区有所扩大，是今后人类活动的重点限制区；中等风险区主要分布在中部的稳定性中等、人类社会经济活动相对集中区，约占总面积的25％，该区可通过采取相应的工程措施和非工程措施进行防灾减灾，加以开发利用；低风险区主要集中在中后部，约占总面积的60％，是可充分利用的地带。

Taking the Heidenhain control system for Mikron NC machine tool as example, I-DEAS postposition processing includes INIT program section, START program section, and TERMINATE program section.

作者单位：（许昌烟草机械有限责任公司，河南许昌 461000）摘要：以Mikron数控机床的Heidenhain控制系统为例，I-DEAS后置处理由INIT、START、TERMINATE三个程序段组成。

Special general partner enterprises to apply the provisions of this section; in this section are not provided, the application of this chapter, the provisions of Section I to V.

t+jy-I0G0特殊的普通合伙企业适用本节规定；本节未作规定的，适用本章第一节至第五节的规定。

And we know that when the last three sections are of the form(-1,0,1),(1,0,-1),the length of the third section increase when the length of the firstsection decrease,and prove that when the third section,that is section of v=0,is oflength 0 at the beginning,the analysis is also suitable.

并证明当右边3段是(-1，0，1)；(1，0，-1)形式时，在第1段时间长度减少的情况下第3段长度是增加的，而且证明了v＝0即第3段开始不存在即值为0时，也可以从无到有的发展。

The utility model profiles is cross-section shaped that in the side,there is the lumen cross-section.vertical profiles of inter-connected connectors connects eucampia square plate-shaped nut screw connected to the bottom profile and the slot between the rectangular cross-section of the convex edge grip tightly, so to connect high strength, easy disassembly

本实用新型的型材是在侧面上有内腔横截面是工字型槽的型材，垂直连接的型材间有弯角连接件和方板形螺母用螺钉相连，可把型材槽底和槽口间的矩形截面的凸棱紧紧夹住，所以连接强度高，拆装方便

Each major section also includes many sub-sections, for instance, the animal section contains animal husbandry sub-section, poultry industry, pig breeding industry, world of dogs, and world of horses.

杨凌农业主题公园分为植物区、苗木花卉区、动物区、昆虫世界、生命园区、购物商城、表演区等7个功能大区，每一个大区又分若干个小区，例如动物区可分为畜牧区、家禽业、养猪业、狗的世界和马的世界。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。