吸上

The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.

文中对汽车碰撞安全性的设计理论和方法进行了归类和总结，其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等；重点介绍了碰撞有限元法的基本理论和有关算法，涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等，探讨了有限元计算中的材料模型参数获取技术，开发了相应的材料试验装置及材料模型参数反求软件，在此基础上进行了基本的碰撞仿真算例和试验对比研究；文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性，指出了设计薄壁吸能构件时需要考虑的几个主要影响因素，即焊点、壁厚、横截面和预变形等；在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究，提出了吸能转向机构和自适应安全气囊的仿真研究方法；文中最后探讨了整车碰撞性能的设计与改进方法，提出了以理想碰撞特性为目标，采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法，并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究，所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车，研究结果表明，本文所提出的设计与改进方法是适用而有效的，具有重要的工程实用意义和价值。

More than 10 years, I heard the company's customers valuable advice and technical absorption silk gun manufacturers, continue to improve, accumulated experience in various aspects, such as: absorption of silk Qiangtou, brothers and ceramic manufacturers have adopted easy Pengsui suction head, will not only affect production , Also increased equipment costs, we head into metal and greatly reduce the cost, a further absorption silk guns into the trachea and the row of silk from the centre, other manufacturers in 36 mm, and we changed to 38 mm, for users to replace the intake manifold, Pai more convenient when the silk, silk guns in the absorption of the two guns, made the point that hole, so it's suction row wire was also larger, users have won, we Asia and China over the years the company pursues " Is the quality of corporate life, the user is God, reasonable prices, better quality,"the purpose, we now more than 100 domestic and chemical fiber enterprises have long-term business, the company specializes in chemical fiber processing machinery parts.

十多年来，我公司听取了用户的宝贵意见，在吸丝枪制造技术上，不断改进，积累各方面经验，如：吸丝枪头子，兄弟厂家都采用陶瓷吸头容易碰碎，不但影响生产，还增加设备费用，我们改成金属头子，大大降低了成本，再有吸丝枪的进气管与排丝管中心距离，其他厂商于36mm，而我们改为38mm，为用户在更换进气管、排丝管时更为方便，在吸丝枪内的二级喷头中，孔的角度作了修正，所以它的吸力排丝量也较大，得到用户的好评，我们亚华公司多年来奉行"质量是企业生命，用户是上帝，价格合理，质量更优"的宗旨，目前我们与国内一百多家化纤企业有着长期业务往来，本公司专业加工化纤机械配件。

If you must deep fry then be sure to drain the food on kitchen paper, turning it a few times to drain off as much oil as possible.

如果你一定要深度油炸，请在食物专用的吸油纸上把食物过多的油吸掉，并在纸上翻转食物，尽量把油吸干。

I also tried, it is just birth babies in the fourth day, on the faster more milk, your baby will also not how to eat, eat small, the results of smoking are smoking are not urgent now, a breast feels a knot, What Fomentation, are tried by touch, that is, useless, pain of his wits, to begin the fourth day have a little bit of fever, was not discharged, asked the doctor how to do at that time there were two hospital nurse is designed to teach us if breast-feeding and breast-feeding correctly solve the problem, see my way I try to teach a method, but many people do not want to, but most do not harm approach: call your husband as much as possible the absorption empty breasts, coupled with the heat, probably three or four times, milk block will go away.

我也试过，那是在刚生完孩子第四天，上奶上得快又多，孩子又还不怎么会吃，吃不多，结果吸都吸不急，乳房摸上去一个一个结，什么热敷，按摸都试过了，就是没用，痛得要命，到第四天时开始有一点点发烧，当时还没出院，问医生怎么办，当时那个医院有两个护理师是专门教我们如果正确哺乳和解决哺乳问题的，看到我这样就教我试试一个方法，不过许多人不愿意，但是最没有伤害的方法：叫你的老公尽量的吸空乳房，再加上热敷，大概三四次后，乳块就会消失的。

This paper aims to find out the nutrition characteristics and fertilizer absorption rule of Castor in arid red soil districts under the subtropical climate of Yunnan province, and establish a corresponding fertilizing technology under the condition. It choose the variety TCO-202 of Castor (Ricinus communis L.) as test material to observe and record the dry matter accumulation of each organ as root, stem, foliage and inflorescence, which are in the five critical growth stages as seedling stage、 bud stage、 blooming stage、 filling stage、 maturation stage of Castor {Ricinus communis L. respectively, and measure out the fertilizer absorption amount of nitrogen, phosphorus and potassium.

本文以云南北亚热带气候下的红壤旱地为试验条件，选用蓖麻品种TCO-202为试验材料，通过对苗期、现蕾期、开花期、灌浆期、成熟期五个蓖麻生长关键时期根、茎、叶、花序各器官的干物质积累和氮、磷、钾吸肥量的测定，研究云南红壤上蓖麻的营养特性和吸肥规律；依据蓖麻的营养特性和吸肥规律，结合云南红壤氮、磷、钾的含量与利用效率，制定适合云南红壤上蓖麻栽培的施肥技术研究方案。

Among his examples are vampire bats tuned to extract blood from large slumbering mammals and bats that aim instead for the warm breast plates of birds; New World leeches that track their hosts through the water and Old World leeches that relentlessly stalk down blood bearers on land; the notorious vampire finches of the Galapagos that daintily peck open dribbling wounds on the hindquarters of blue-footed boobies; and the candiru, tiny, eel-like catfish that are reputed to have the power to swim up a person's urethra and suck blood from the bladder and thus are often more feared than their fellow river dwellers, the piranhas.

他举的例子有自静止状态的大型哺乳动物吸血的吸血蝙蝠，与转而瞄准鸟儿温暖胸脯的蝙蝠；西半球的水蛭透过水来找寄主，东半球的水蛭在陆地上无情追踪带血的对象；加拉巴哥群岛恶名昭彰的吸血鸣鸟一点一滴优美地在蓝脚鲣鸟的尾部啄出伤口；还有短小鳗形的寄生鲶，以直接游入人类尿道从膀胱吸血而知名，因此比同条河里的食人鱼更令人畏惧。

METHODS:Two hundred and seventy-one eyes of 219 patients with hard nucleus cataract, grading level IV or V, were operated with anteroposterior interceptive chop method for splitting the nucleus, and then with phacoemulsification. RESULTS:The hard nucleus of the 271 eyes were successfully routed. The average phaco time was 57.4 s.

对219例(271眼)级以上硬核白内障采取前后夹击劈核法，经充分水分离和水分层，吸除硬核前的皮质及软核后，乳化头退至前囊口上缘，劈核器轻压核下方，停止灌注让核上缘随前房变浅脱出囊袋口，乳化头顺势抵住核上缘，灌注加深前房后，乳化头滑入核后面，劈核器置核前面，前后夹击将核劈碎乳化吸出。

Wheel/rail noise of the high-speed slab track on concrete bridge and that of the urban elevated supporting block track are predicted respectively. Noise of the slab track, compared with that of the ballasted track, is more severe. The noise of the slab track is about 6.2dBA higher than that of the ballasted track for the receiver nearby the rail, and about 3.5dBA higher than that of ballast track for the receiver

对降低高速铁路桥上板式无碴轨道及城市轨道交通桥上支承块式无碴轨道轮轨噪声的技术措施进行了研究，包括：(1)分别就板式轨道和支承块式轨道结构参数的低噪声设计原则进行了研究；(2)对几种典型的新型轨道用吸声材料的降噪效果进行了分析，结果表明降噪效果显著；(3)就声屏障高度、位置、形状以及声屏障内侧敷设吸声材料对降噪效果的影响进行了分析，结果表明：声屏障越高、越接近轨道，降噪效果越好；声屏障内侧敷设吸声材料，可降低钢轨近旁噪声2.0～3.0dBA，可降低近地面噪声约1.5～2.0dBA

Studies on the effect of eluting time,temperature and ultrasonic on elution rate are carried out and X-ray fluorescence are used in analysis.

针对硫酸溶液可以有效洗脱树脂上的氰化物和锌，但不能洗脱铜的工艺问题，选择氨水溶液对酸洗后201×7树脂上的铜进行解吸；试验研究了解吸过程的时间、温度以及超声波作用等条件对解吸率的影响，并进行了X射线荧光分析。

The planetesimals accretion s of the Earth obviously have two stages, including initial accretion and late accretion .

地球的星子吸积过程具有明显的两阶段性，即原地球吸积阶段和晚期吸积阶段，而后期的吸积过程对上地幔及地壳的化学成分不均一性的影响尤为显著。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。