向下的

Results show that the equivalent mass in normal direction depends on the modes of collision. In the case of reversed sliding and sticking, the coefficient of restitution varies as a result of the instantaneously changes of the equivalent mass during impacting process. The coefficient of restitution depends not only on the contact force, but also on the kinematical and dynamic parameters of the two rigid bodies. Moreover, a formula is proposed to calculate the coefficient of restitution.

指出法向等效质量依赖于碰撞状态，在反向滑动和停止滑动这两状态下的法向等效质量是变化的，因此导致其恢复系数是变化的，这样，恢复系数不仅与接触力有关，而且还与两刚体的运动和动力参数有关，同时给出各种碰撞状态下的恢复系数计算式。

All the conspicuity maps will be integrated into a single conspicuity map which will be used to extract interesting map by nonlinear relaxation algorithm. The top-down attention mechanism uses the knowledge of visual task and object.

知识驱动的自顶向下注意机制基于自底向上兴趣图和待注意物体的知识，通过模式匹配生成描述待注意物体可能存在的位置的自顶向下兴趣图。

A theoretical model for calculating the cutting angle with different crystal planes, orientations and tool orthogonal rakes are described in this paper. It is built with the ultra-precision cutting model by the principle of the maximum specific energy of shear deformation and the mechanism of change of the shear modulus with...

本文利用剪切变形比能最大及单晶材料不同晶面晶向剪切弹性模量不同的原理，结合超精密切削模型，从理论上计算出不同晶面、不同晶向及不同刀具前角超精密切削条件下的剪切角，得到其在不同切削条件下的变化规律，并由此解释了切削加工中由KDP晶体各向异性所导致的工件表面粗糙度的各向异性。

Deformation modulus: the ratio of the vertical load to the vertical strain is called as Deformation modulus.

土的变形模量：土体在无侧向约束条件下，竖向应力与竖向应变的比值。

Additionally, the top wall has a flexible annular ring formed axially along an inner surface and depending downwardly therefrom and spaced inwardly of the skirt.

另外，顶壁有一个沿其内表面轴向地形成的向下延伸的弹性圆环，并且该弹性圆环向内与环状裙边分隔开。

In this paper, the statistical characteristics of one plane and one helicopter's RCS dynamic measurement data are studied by using the χ^2 distributing, log-normal distribution and Rayleigh distributing model, along with the Kolmogorov fit test to goodness, the fitting results in some notableness level are acquired by using the three models for different aspect angles for two targets, and the degree of freedom distribution of χ^2 model in all aspect angles is obtained for two targets' RCS data.

文中以某歼击机和直升机为对象，应用χ^2分布、对数正态分布和瑞利分布模型，以及Kolmogorov拟合优度检验方法，研究其RCS动态测量数据的统计分布特征，得到了在一定显著性水平下，两种目标在不同视向角下对三种模型的拟合效果，同时得到应用χ^2分布拟合时模型半自由度随视向角的分布情况。

Several fierce flames are shot to Po. He dodged two then breaks a flowerpot. He makes accurate shot with pieces of broken flowerpot to the outlet of flames. Flaming mechnisms are operated with burning oil so they explodes one by one since the outlets have been obstructed. Later, Po seems to notice something and jumps upward all at once. As soon as he jumped, many steel spears shoot out vertically. A person with inferior martial art must be stabbed into a hedgehog shape. Po, though, shocks away all spears with a heavy both-handed slash which sends out intense collision energy and even makes a shallow pit on the ground. Po lands in the pit then runs to the wall.

只见几道猛烈的火焰向童博射去，童博闪过两道，然后打碎一个花盆，把花盆碎片向火焰射口准确的打过去，火焰机关是靠射出点燃的油，出口一但被堵，就一个个自己炸毁了，之后童博不知察觉什麼突然向上跃起，地面立刻向上垂直射出许多钢矛，要是武功稍差之人，一定被插成刺猬一样，可是童博双手持剑向下用力一劈，猛烈的剑气不但震开所有钢矛，还把地面打出个浅坑，童博落在浅坑中，一转身向墙边跑了过去

The Ring of Fire goes all the way from the Philippines past Japan to China and Kamchatka in Russia, to the Aleutians in the United States down through Alaska and across Cascadia in the Pacific Northwest, joining up with the San Andreas down the West Coast to Mexico and into South America, and another part of the ring goes through Indonesia, Scholz said.

Scholz指出：环太平洋地震带以菲律宾为起点、经日本、中国、俄罗斯的堪察加半岛，美国的阿留申群岛，向下延伸至阿拉斯加，穿越太平洋西北部的卡斯卡底古陆，与圣安地列斯群岛汇合，沿着西海岸向下直至墨西哥，进入南美洲，该地震带的另一部分则要穿越印度尼西亚。

S Broad asphalt along the main road, followed by the array of more than 30 of its significant interest in large, medium and small Recreation: If the crazy "roller coaster" in the air on the track and came to a series of somersaults, and let you experience a soul-stirring centrifugal, rapid rotation of panic, can be done to stimulate;"fast scooters" in the track km On the fast, as Shirupozhu dive 30 meters high slope, Huer mad to Jixuan, feelings like Cloud Nine fall, as if riding a bull at running back; in particular, the addition of new large-scale projects,"Challenger Tour" Mars will give you the speed of excitement around the world,"wind speed," you over 10 meters in height, during which around and up and down several times before and after the turnover, there is a non-feet under the ultimate experience weightlessness; and the "monster House "is another boost fan, pitch dark, cold wind gusts, desperate calls and setting of zombie ghosts and volatile side of the creeps you scared, scared; 50 meters out to the" Ferris wheel "to let you enjoy the" List Small hills,"the sense of endless;" Liu Yong Jin,"When you enjoy the" drift "Huiguoshenlai no sense, as water spilled from the mountain 10 meters high fly drift down the moment, the heart Has been hanging in the air to the; also hit eyeful of Venus "bumper car"; as the mischievous people Shuaixiang half-empty,"Spider-Star,""rotating aircraft" and "forest mouse car," and so on, you will be able to bring a Although the stimulus was accompanied by tears, but more interest is the doubling of the situation, a test of your willpower.

沿着宽阔的柏油大马路，依次排列着三十多个各显其趣的大、中、小型游乐项目：如疯狂&过山车&在凌空的轨道上急转直下而又接连翻腾，让你经历一场惊心动魄的离心、快速旋转的恐慌，可谓极尽刺激；&快速滑行车&在千米的轨道上风驰电掣，势如破竹般俯冲三十米高坡，忽儿狂转急旋，那感觉仿如九霄云外下坠，又好象骑在蛮牛背上狂奔；特别是新增设的大型项目&挑战者之旅&将带给您火星绕地球的速度快感，&极速风车&，你凌驾十米高空中，其间几度上下左右和前后翻转，真有一种双脚无着下的终极失重体验；而&妖怪屋&又是另番刺激，伸手不见五指，寒风阵阵，绝望的叫声和出没无常的僵尸鬼面，吓得你毛骨悚然，胆战心惊；拔地五十米的&摩天轮&让你享受&一览众山小&的无垠感觉；&激流勇进&，当你优悠的&漂&感还没回过神来的时候，高山泻流水般从十米高处向下飞漂的那一刻，心已悬到半空中了；还有撞到满眼金星的&碰碰车&；恶作剧般把人甩向半空的&星际蜘蛛&、&旋转飞机&和&森林老鼠车&等，都能将你带到一个虽然伴有被刺激后的泪花，但更多的是兴致倍增的境地，考验了你的意志力。

The inside surface difference between flank-extrados and flank-intrados of any section of loop shell should induce the force difference when the loop shell under internal pressure. The force difference in ring shell can balance itself.

对于内压作用下的任何弯管，因为弯管中线上径向向外的管壁表面积均要比中线上径向向内的管壁表面积大，两者面积之差在同一内压作用下产生面积压力差。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。