四重

This research proposed a practical and useful method that combining dynamic analysis with finite element analysis method to investigate more precise stress distribution of link elements of quadruped robot due to statical and dynamical loading.

本研究针对本实验室发展的四足机器人结合机构运动力学与结构有限元素分析的方法，探讨机构零件减重的可行性及尺寸外形的创新改善，希望达到结构够强壮，机器人也能更轻巧，以节省材料成本达到节能与灵巧的设计目标。

In the forties, it becomes a steel strongbox door which weighs over a thousand jin. Even the wind couldn't get through, let alone fire or water. Only those who both know the password and have the key or the extremely skillful thieves could open it.

四十几岁的心扉是保险金库的钢门，重逾千斤且密不透风，既耐得住火烧，也不怕水浸，只有那知道密码、备有钥匙的人，或了不得的神偷，才能打得开。

Four days after the incident, she learned that fishermen on Kaua'i's north shore were talking about hunting down the 13-foot, 1500-pound tiger shark.

鲨鱼袭击事件之后的第四天，她得知考爱岛北部海岸的渔民正在谈论捕杀一条13英尺长，1500磅重的虎鲨。

Hideki Matsui followed with a single to score Rodriguez and bring the Yankees to within one run before Giambi stepped in.

在系列战第一场被砸重左脚的技安，扮演迟到英雄拯救洋基，这已经是王小民连续第四场掉超过五分了，目前4.57 ERA的小民在包含牛奶超昂贵漏接的抖抖第五局退场

Whitening sunscreen containing emollients series "triple whitening" new formula, combining components of vitamin E moisture,净白cream and sunscreen factor, so that your skin in four weeks more white, more health, in accordance luster and shine .

玉兰油美白防晒润肤系列含有"三重美白"新配方，结合维他命E滋润成分，净白精华和防晒因子，令您的肌肤在四星期内更白皙，更健康，并焕发润泽光彩。

The main structure uses the design of the ellipse trochoid of the 4 bar strider. We made the ellipse trochoid to be the optimum state for reaching the simulation effect when people are running. Besides, the design can switch to be a new six-bar strider. It uses a link bar to bind the axis pillar and the pedal also made the pedal slide free to reach the sport effect.

研究内容主要著重於二合一椭圆机之椭圆轨迹最佳化及机构运动合成，主要构造系利用一四连杆椭圆机之设计方式，并将其椭圆轨迹最佳化，以期更符合模拟人跑步时的步伐；另外，此设计亦可转换为一新型之六连杆踏步机，其系利用一连杆连接踏板及中心柱，并使踏板可在滑槽上自由移动，使其可达到踏步之运动效果。

Contestants in four categories hurl6 tuna fish weighing up to 10 kilograms as far as they can.

四个级别的选手尽可能地将最重可达10千克的金枪鱼掷出。

Coaxial, contrarotating and widely separated semi-rigid three-blade rotors, with swept blade tip, attached to hub by steel plates; small fuselage cross-section, with nose sensors; flat-screen cockpit, heavily armour protected by combined steel/aluminium armour and spaced aluminium plates, with rearview mirror above windscreen; small sweptback tailfin, with inset rudder and large tab; high-set tailplane on rear fuselage, with endplate auxiliary fins; retractable landing gear; mid-set unswept wings, carrying ECM pods at tips; four underwing weapon pylons; engines above wingroots; high agility for fast, low-flying, close-range attack role; partially dismantled can be air-ferried in Il-76 freighter.

同轴，并广泛分离的反向半刚性三叶片转子，叶片尖后掠，隶属由钢板枢纽；小机身的横截面，有鼻子传感器；纯平驾驶舱，重装甲保护的组合钢/铝装甲铝及间隔板，前挡风玻璃与后视镜以上；小sweptback尾翼，方向舵与插图和大型标签；高载列于机身后部尾翼，与终板辅助鳍，可伸缩的起落架，中集未波及翅膀，承载的秘诀流脑豆荚；四翼武器挂架； wingroots发动机以上；快速高敏捷性，低空飞行，近距离攻击的作用；部分拆除，可空气中摆渡伊尔76货机。

In the first pa.rt,we clolinc the TC inodnhis of convexity and TC modulus of smoothness of quasi-Baiiach space, and prove that the space which is characterized by uniform convexity is same as the space which is cliaracteri/,ed by uniform TC convcxity.Then we give several characterizations of q-uniformly TC convex quasi-Banach space.At the same time ,we prove the triionned-theorcm.In the second part, we give the relationships between some inequalities of martingales with values in quasi-Banach space and uniformly TC convex quasi-Banach space.

本文分四部分，第一部分在拟Banach空间上定义了TC凸性模和TC光滑模并证明了在Banach空间上它分别和一致凸性和一致光滑性刻划的空间是一致的，即Banach空间X是一致TC凸的的充分必要条件是它是一致凸的，Banach空间X是一致TC光滑的充分必要条件是它是一致光滑的，还分别得出了判定一致TC凸和一致TC光滑的几个充分必要条件，同时还证明了在拟范数下的重赋范定理。

This thesis explores and studies the reasons of the unprevailing of Chinese antiquity myth at four stages: pre-language stage, striving for survival were the focus of people's life

中国上古神话不发达的根本原因可分四个阶段考察：语言产生之前，人们无数代全力以赴地解决生存问题，与此相随的是"重实际而黜玄想"的心理习惯

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。