机翼失速的发生在电梯表面系数最高的机翼上,当气流不能继续围绕翼型的鼻子(领先),并脱离机翼上。
The stall of the wing occurs at the highest lift coefficient on an airfoil, when the airflow can no longer go around the airfoil's nose (leading edge) and separates from the upper wing surface.
因素包括好的热系数匹配和光滑的底层表面。
Factors include good thermal coefficient matching and smooth substrate surfaces.
RDQL的语法表面上类似SQL的语法,它的一些概念对已经使用过关系数据库查询的人来说将比较熟悉。
RDQL's syntax superficially resembles that of SQL, and indeed, some of its concepts will be familiar to anyone who has worked with relational database queries.
反蛋白石是一种有着微管道结构的薄片,它表面张力系数不同的液体非常的敏感。
The inverse opal is a chip with micro-channels sensitive to liquids of specific surface tensions.
这表面有极高的硬度(60局。),耐磨性和耐腐蚀性,低摩擦系数。
This surface has extreme hardness (60 RC. ), excellent wear and corrosion resistance, and low coefficient of friction.
而冲量耦合系数对点火区与聚光系统内表面的距离及喷管长度等参数并不十分敏感。
And the impulse coupling coefficient is not sensitive to nozzle length and the distance between ignition zone and inner surface of nozzle.
塑封集成电路因其是非气密性封装,封装材料热膨胀系数的不同以及被粘接材料表面能低,是造成塑封电路离层或开裂的内部原因。
First of all, the internal reason for the delamination or cracking is the different CTE of the packaging materials and the low surface energy of the adhesions.
为了解决这个难题,本文通过实验测试和系统辩识的方法研究了风速风向对墙体表面换热系数的影响。
In order to solve this problem, the effects of airflow velocity and airflow direction on heat transfer coefficient of wall surface are studied in this paper.
另外,研究了消失模铸造法铸型表面硬度、界面换热系数的变化规律。
Moreover, the variation law of mold surface hardness and interface heat transfer coefficient were studied.
分析比较了浆液浸透量与被覆量、浆纱覆盖系数、原纱表面毛羽及浆液成分对浆纱落物形成的影响。
The factors to influence size shedding, such as size soakage and coverage, cover factor, yarn surface hairiness and size composition, are analysed and compared.
应用有限元分析软件ANSYS计算了1045钢淬火时具有相变和非线性表面换热系数的温度场。
The temperature field with phase transformation and non-linear surface heat-transfer coefficient of steel 1045 during quenching is calculated with ANSYS program.
根据实验结果给出了计算主盘表面平均对流换热系数的经验关系式。
An experimental correlation of the averaged heat transfer coefficient on the main surface is formulated.
结果表明,混凝土表面对流换热系数与风速基本呈线性关系。
The test results indicate that there is linear relationship between surface convection coefficient of concrete and wind velocity.
建筑外表面对流换热系数是建筑节能和城市环境模拟中的重要参数。
The convective heat transfer coefficient(CHTC) of building exterior surface is an important parameter for energy-saving and urban environment simulation.
计算结果表明,外加偶极子磁场使激波脱体距离增加,壁面摩擦系数和表面热流密度增大。
The results show that the shock standoff distance, skin friction coefficient and surface heat flux all increase with the strengthening of the external dipole magnetic field.
介绍了用自制的振源、振子来激发表面波(涟波)产生干涉,从而测出液体的表面张力系数的方法。
This paper presents a method of using self made vibration source and vibrometer to excitc surface waves (ripples) to produce interference.
使的表面积加大产生避震器组尼系数提高。
Causes the surface area to enlarge has the shock absorber damping factor enhancement.
同时,根据流体相似理论计算了转子通风沟内流体速度和表面散热系数,给出了该电机计算结果。
According to the theory of fluid mechanics, the equivalent network chart of air speed distribution of the rotor ventilation grooves and surface heat sinking coefficient are calculated.
轮轨表面的污染层也会影响粘着系数的变化,它避免了轮轨表面直接接触,有利于减少磨损。
While this contaminant layer is responsible for varying friction values, it plays a beneficial role by separating the wheel and rail surfaces, usually decreasing wear.
最大值的及达到此最大值的时间均随几何形状和表面热传导系数而变。
The magnitude of the maximum value, as well as the time to reach such maximum value, varies with geometry and surface heat-transfer coefficient.
阐述用电子分析天平测量液体表面张力系数的原理和方法。
The theory and method that the surface tension coefficient of liquid is measured by an electronic analytical balance is introduced.
相同雷诺数的槽板平均表面换热系数是平板的2~3倍,同时减小了流动阻力。
The grooves on the heated surface lowered the flow resistance and enhanced the film heat transfer coefficient 2-3 times that of flat plates.
给出了用拉脱法测量液体表面张力系数测量公式的详细推导过程并得到了液体表面张力系数的原始公式。
This article has deduced the measuring formula of liquid surface tension coefficient by pulling escape, and got the primitive formula of liquid surface tension coefficient.
当温度继续降低时,铸锭表面传热系数又迅速减小。
After that, the heat transfer coefficient is rapidly decreased with temperature decline.
提出了一种紧凑式换热器平均表面传热系数瞬变测试方法。
A transient testing technique for measuring average convection heat transfer coefficients of compact heat exchangers is suggested.
对机器人的牵引力、运动速度、在不同摩擦系数介质表面上的运动能力、头舱姿态进行了试验。
Experiments are made on locomotion force, velocity, locomotion ability on surfaces with different friction coefficients, and pose of the head cabin.
首次提出了用辅助变量法分析建筑墙体外表面换热过程及推导墙体外表面换热系数的实验方法。
A new experimental procedure is proposed based on instrumental variable method for analyzing wall surface heat transfer process and deducing wall surface heat transfer coefficient.
介绍了汽轮机动叶片叶身平均对流换热表面传热系数和叶片流道下壁面对流换热表面传热系数的计算方法和计算公式。
Method and formulae for calculating the mean forced convection heat-transfer coefficient of the blade surface, as well as for the blade passage's bottom wall, are introduced.
首次提出了用频率谱分析法分析墙体表面换热过程及推导墙体表面换热系数的实验方法。
This paper first presents an experimental procedure to analyze wall surface heat transfer process and derive wall surface heat transfer coefficient by frequency spectral analysis method.
首次提出了用频率谱分析法分析墙体表面换热过程及推导墙体表面换热系数的实验方法。
This paper first presents an experimental procedure to analyze wall surface heat transfer process and derive wall surface heat transfer coefficient by frequency spectral analysis method.
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