在外形上

After the airdrop experiments of the system of the projectile and speed-down parachute, the balance velocity obtained from the optics apparatus on the ground、the balance spinning speed obtained from the gyroscope on the projectile and the image obtained from the infrared detector on the projectile are all used to simulate the six-dimension exterior trajectory of the projectile and identify the roll damping moment derivatives, and the identification can safely come to a conclusion that the absolute value of roll damping moment derivatives from the engineering calculation are on the low side.

对卷弧尾翼弹与减速伞系统进行空投试验，由地面光测系统给出平衡落速、弹上陀螺给出平衡转速、弹上红外探测器拍摄地面图像判断弹的姿态。通过六自由度弹道模拟，对弹滚转阻尼导数进行参数辨识，得到工程估算所得滚转阻尼导数绝对值偏小的结论。 5。对空投试验中出现弹姿态摆动现象，从受力分析及红外图像分析两个方面进行探讨，给出合理解释，并根据分析对弹外形进行修改，在后来的试验中收到很好的效果。

Tied arch bridge is a bridge that has the outline of concinnity and is fit for building in the city or on the soft clay ground, which possesses the important status in the domestic and foreign history of bridge building. Its construction method and design theory are already comparatively mature and perfect.

系杆拱桥作为一种具有优美外形同时又适合在城市或软土地基上修建的桥型，在国内外桥梁建筑史上都占有十分重要的地位，其施工方法和设计理论都已经比较成熟和完善。

Then the FLUENT software was used to simulate the amphibious vehicle' ambient flow field through defining the unsteady boundary condition. The lift, resistance, velocity, pressure, and wave of the amphibious vehicle moving in the regular waves were obtained, which can avoid the errors resulted from neglecting the free surface and provides theoretic basis for the research on optimization design of high performance amphibious vehicle.

在计算出某改进型两栖车在微幅规则波中高速迎浪运动时升沉和纵摇特性的基础上，运用FLUENT软件，通过自定义非定常入口边界实现了两栖车在微幅规则波中运动的三维流场数值模拟，得到了升力、阻力、速度、压强和兴波等流场参数，实现了两栖车在波浪中的绕流场数值模拟，解决了以往由于忽略兴波特性导致数值计算结果随航速提高误差不断增大的问题，为高性能两栖车的外形设计研究提供了理论依据。

It was a dismal Sight to look at: The Ship, which by its building was Spanish, stuck fast, jaum'd in between two Rocks; all the Stern and Quarter of her was beaten to pieces, with the Sea; and as her Forecastle, which stuck in the Rocks, had run on with great Violence, her Mainmast and Foremast were brought by the Board; that is to say, broken short off; but her Boltsprit was found, and the Head and Bow appear'd firm; when I came close to her, a Dog appear'd upon her, who seeing me coming, yelp'd, and cry'd; and as soon as I call'd him, jump'd into the Sea, to come to me, and I took him into the Boat; but found him almost dead for Hunger and Thirst: I gave him a Cake of my Bread, and he eat it like a ravenous Wolf, that had been starving a Fortnight in the Snow: I then gave the poor Creature some fresh Water, with which, if I would have let him, he would have burst himself.

眼前的景象一片凄凉。从那条船的构造外形来看，是一条西班牙船，船身被紧紧地夹在两块礁石之间。船尾和后舱都被海浪击得粉碎，那搁在礁石中间的前舱，由于猛烈撞去，上面的前桅和主桅都折断倒在了甲板上，但船首的斜桁仍完好无损，船头也还坚固。我靠近破船时，船上出现了一只狗。它一见到我驶近，就汪汪吠叫起来。我向它一呼唤，它就跳到海里，游到我的小船边来，我把它拖到船上，只见它又饥又渴，快要死了。我给了它一块面包，它就大吃大嚼起来，活像一只在雪地里饿了十天半月的狼。我又给他喝了点淡水，它就猛喝，要是我不制止它的话，真的可以喝得把肚子都涨破。

The geometrical parameters of the wing and tail planform and few geometrical parameters of fuselage which have more on the configuration are optimized and those constant parameters are given values according to the designer's experience or the optimizations of the parts.

在优化时，将整机外形几何参数分为优化变量和固定参量；主要优化对总体外形影响较大的机翼、尾翼的平面形状几何参数以及少数几个机身的几何参数；对于固定参量，根据经验或部件层次上的优化结果给出固定值。

The stealth warplane for the microwave radar usually have complicated structures with the coating of wave absorption. On the base of calculation and modeling of the geometrical structure of the warplane in real size, the HF RCS of the air crafts under two different polarizations in different direction have been calculated with the FDTD. The result shows that the above mentioned stealth warplane have the obvious characterstics of frequency resonance, polarization and the relatively large RCS in HF Band 10-30dBm2, which can be used as the theoretical reference for selection of working frequency for sky wave OTH Radar and it also means that the sky wave OTH radar has good capability of anti-stealth targets quantitatively.

对微波雷达具有隐身作用的飞机，其形体较为复杂且表面涂敷有强吸波材料在对一种具有隐身几何外形结构实际尺寸飞机进行计算建模的基础上，文中采用FDTD技术得到了两种极化状态下该飞机无涂敷时不同方向上的短波雷达截面RCS值其结果显示了这种隐身几何外形飞机在短波波段有明显的频率谐振特性、极化特性和较大的RCS10-30dBm2，可为天波超视距雷达在选择工作频率时提供理论参考，并定量地说明天波超视距雷达具有较优的反隐身目标能力

As with other aspects of the trilobite body, there was a huge variation of size and form among trilobite eyes, which in many cases seems related to the ecological life style of different species.

在其他外形的三叶虫中，眼睛之间有着巨大外形和尺寸上的差距，这些不同的眼睛是为了适应不同的生态环境。

Many was the time that we'd plucked the thorns off the lager,hoarier bushes and lick-stuck them upon the bridges of our noses,turned ourselves on the instant into fearful mutations of the human form:dinosaurboys.

有好几次，我们从那些较大、灰白的花丛上摘下刺来贴到我们的鼻梁上，我们的模样立刻变得恐怖：恐龙男孩。问题：&我们的模样立刻变得恐怖&原话是&使我们立马完成了人类外形的恐怖转变&，这种孩子气的故作庄重，在译文中全没了。同样，lick-stuck也是老老实实的译成&舔了粘在&比较好。

Methods Designs was made for the predetermining double eyelid lines according to the appearance of eyelid and different style of faces. A middle incision about 15 mm was made on the middle 1/3 of the upper eyelid after local anesthesia.

根据受术者眼睑外形和脸形设计重睑线，局部麻醉下在上睑中部1/3做长15mm的中段切口，去除切口内部分眼轮匝肌、眶隔脂肪及睑板前结缔组织，将上睑皮肤与睑板固定3针，形成重睑。

With the methods of experimental comparison and mathematical statistics,this paper makes the comparison between Star teaching model and traditional model.The main purpose is to discuss the better teaching model with the comparison,analysis,and induction of statistical data in three tests.The results show that there are more validities and rationality of Star model in the aspects of the effect of study,quantification of teaching,comparative analysis.

经过文献资料的比较和分析，现代定向越野运动无论在技术教学的基本观点上还是在技术的外形和内涵上都有了新的变化和发展，但方法还是比较单一，且大部分采用的是定性分析方法，分析体能、技能的构成、比重时只着眼于整体，一定程度上不够确切，不能细化地作定量描述，因而，学生对技术的分析、认识也必然带有相对的模糊性，不可能从技术的本质上作深入的分析，进而有效地解决问题。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。