查询词典 to drag on

The energy exchange analysis indicates that gliding energy efficiency is dependant on the lift drag ratio of the wings and gliding angle of the hull. Through the calculation in this thesis, it can be concluded that enhancing the lift drag ratio can largely improve the energy efficiency when the gliding angle is in the range of 10to 40 degree, and when lift drag ratio is fixed, there exists a special gliding angle for the maximum of the efficiency, which provide theoretical basis for the design of operating parameters.

通过能量转换分析，得出滑翔机航行效率由机翼升阻比和机身航行角决定，航行角在10~40度范围内，增大机翼升阻比可显著提高航行效率；并由计算得出，在升阻比一定的情况下，总存在一个使滑翔机航行效率达到最大的航行角度，为样机工作参数设计提供了理论依据。

Using conformal mapping, the longitudinal protrusion height and the lateral protrusion height on the V-grooved surfaces are given, on this basis, some drag reducing features in parallel-flow, cross-flow and enlarge- flow are presented and analyzed; In addition, drag reducing features with blade-shaped grooves and U-shaped grooves are discussed, consequently, the riblets designing criterions are suggested which will reduce the drag and noise most effectively underwater.

3利用保角变换方法求出V—型条纹的纵向和横向突出高度，在此基础上得出纵向流、横向流和带角度流动时的降阻特性，并分析结果；而且分析了叶片型条纹和U—型条纹表面上的降阻情况，提出水下具有最佳降阻效果的条纹表面设计准则。

In the field we tested the drag throughout its range by adjusting the clicking drag star. At each setting, the performed as expected ?smooth and consistent with no hesitation. Cranked down, the drag can easily haul in big bass or put a dead-stop to big stripers on the run.

在实地测试中，我们有意识的将卸力调整到不同的度数来测试它的整个拉力范围，在每一个区间范围内，卸力表现都非常出乎意料，顺化，流畅，平稳，没有磕绊，深水表现中，其力量可以轻易将大嘴鲈甚至大海鲈拿下。

Wave drag is more complicated than induced drag and parasitic drag.

我的译文：波阻要比诱导阻力和寄生阻力复杂得多。

The inviscid Euler drag solution is separated into an induced drag component and a wave drag component.

在采用欧拉方程进行气动力计算过程中，由表面压力积分来估计的阻力只考虑了压差阻力，计算得到的无粘阻力分解成诱阻和波阻。

The incorporated model is evaluated by simulation results of two different building aerodynamical scheme in southeast region of Beijing area, which are building drag scheme and aerodynamical urban canopy scheme. The conclusions are drawn by the comparisons between the simulation results of the wind speed and the observations of the automatic weather stations in the urban areas: the simulated results of incorporated model are more in reasonable agreement with the observations than that of building drag scheme, and the diurnal trend of that is more agreement with observations.

采用建筑物拖曳法和建筑物动力冠层方案两种不同建筑物动力学处理方法对北京地区东南部进行模拟，通过城市地区水平风速的模拟结果与自动气象站实测资料对比发现模拟结果与实测相当吻合，建筑物动力冠层方案的引入能够更好地实施对城市地区的水平风速分布的数值模拟。

In this paper,the drag-reducing surfactant solution flows in a fully developed turbulent channel flow have been analyzed experimentally using Phase Doppler Anemometry and thermocouples in order to study the temperature fluctuations and heat transfer characteristics on the drag-reducing and heat transfer reduction phenomena of the surfactant solution flows.

该文针对在水中添加阳离子表面活性剂产生的减阻作用同时降低传热性能的现象，应用相位多普勒激光测量系统和热电偶温度测量系统对二维流道内表面活性剂减阻流体热边界层内的湍流温度脉动以及传热特性进行了实验研究。

The experimental results show that:(1) for ideal spheres, the attenuation coefficient of velocity is constant, the air drag coefficient is slightly affected by the initial velocity and is a linear function of initial velocity, and (2) for real fragments formed by a warhead, the flight performances are different from ideal spheres, the air drag coefficient is affected by the flight velocity and is a linear function of flight velocity.

实验结果表明：(1)对于理想球形钨合金破片，在同一初始速度条件下，衰减系数为常数，空气阻力系数与初始速度有关，两者成线性关系；(2)对于经历爆轰驱动的球形钨合金破片，由于有轻微的质量损失和变形，速度衰减规律与理想球形钨合金破片有明显的区别，空气阻力系数与飞行速度有关，两者成线性关系。

Warrior: Thief Pipi, kid hat, miracle, director, is to be, Gagne pride **, Dream * son, Pepsi unique,侠骨tenderness (riding a pig Heilonggang release), pride * Liquor Weng *,仗剑take the End of the World, Chudo =--= iron, fighting spirit, ghost Chitose Long, and Latin America, the wind * Baron, rapid hell pride drag more drag, pride and enthusiasm *坏坏, Hyun Dance || unique, Qiushui love, pride - Feng less romantic * pull the wind, in troubled times | superstars,*, the rapid hell潜龙勿用, pride Fenglei V, the last De in June, the Antarctic ice, heart sword dance, take you to see the sea, AG this what the whole pinch, autumn night, pride and enthusiasm * Fengyun, Soul Calibur V pride, Dragon proud nine Cheung, happy and fun, pride and enthusiasm *坏坏, AG Xiaoyao dance evil, pride * Feng less lonely for failure, in troubled times Yama, the god of honor, sword in this love, chamaejasme flowers, Dili hate.

战士：大盗皮皮，草帽小子，奇迹主任，正将，豪情*盖聂*，梦幻*公子，百事无双，侠骨柔情，豪情*酒翁*，仗剑走天涯，-=铁中堂=-，斗魂，千岁龙鬼，拉风*男爵，急速地狱，豪情拽更拽，豪情*坏坏，炫舞||无双，秋水有情，豪情-枫少，浪漫*拉风，乱世|巨星，*，急速地狱，潜龙勿用，豪情V风雷，最后De六月，南极冰封，剑随心舞，带你去看海，AG这啥整捏，夜夜秋雨，豪情*风云，豪情V剑魂，飞龙傲翔九，开心又开心，豪情*坏坏，AG邪舞逍遥，豪情*枫少，孤独求败，乱世阎王，荣誉之神，剑本有情，狼毒花，帝恨。

In determine the coefficient of drag, the group piles drag coefficient curves are obtained through channel experiment and the conclusion is put into numerical model for simulating several engineering condition .

本文从水流的基本控制方程出发，对经典的N～S方程进行应用，引入阻力项以更好的反映群桩阻力对水流的影响。

They experience feelings deeply and intensely, and their emotions are often mercurial.

他们的感情深刻而强烈，情绪善变。

Surrounded with or as if with a rampart.

用城墙围绕的用城墙围绕的或类似于为城墙围绕的