Selam is actually a skull and near-complete skeleton. It's a find that has had the science world in a flutter.
科学家们在非洲国家埃塞俄比亚境内发掘出了塞拉姆的头盖骨以及保存得几乎完整的骸骨化石。这一重大发现也在科学界掀起了阵阵波澜。
Poor Harriet was in a flutter of spirits which required all the reasonings and soothings and attentions of every kind that Emma could give.
可怜的哈丽特给搞得心神不安,需要爱玛尽力多加开导、安慰和关心。
Conrad dies but Troy survives with a punctured lung, requiring a flutter valve in his chest to relieve pressure.
康拉德死了,但特洛伊活了下来,他的肺被刺破,需要胸腔里的一个翼阀来释放压力。
Leaves flutter past the window, up and away; down in the avenue a whole newspaper wags in the air like a lost kite and falls, spiked on a pine tree.
树叶儿在窗外飘摇而过,高高地卷向远方;林荫道里,挂在松枝上的一张完整的报纸,像断线的风筝飘飞到半空,然后又晃晃悠悠地掉下来。
Swans on their autumnal migratory flight—the celestial flutter of wings, the silver arrow of a flock splitting the sky—evoke poetic melancholy. Shadows lengthen. Days shorten. Another year closes in.
在秋天的迁徙飞行中,天鹅们化身为长着翅膀的飞仙,似银箭一般刺破蓝天,此情此景不免会勾起诗意愁绪来:光阴渐长,时日变短,又是一年将来到。
Perhaps more significantly, my own heart was beginning to flutter in the presence of certain specific girls — I had a crush on Janice Lamb beginning at about age eleven.
也许更为有意义的是,我的心开始在某些女孩面前悸动——大约11岁的时候,我对詹妮斯·拉姆开始了少不更事的迷恋。
It creates a tingling sensation in your fingertips, a flutter in your heart and warmth in your belly.
它使你指尖发麻,心头乱跳,胃里一暖。
The test results show that a change in two parameters-the gain and the phase Angle of the feedback control-will have an effect on the stability of the active flutter suppression system.
实验结果表明:改变反馈控制的增益和相位角两个变量,能影响主动颤振抑制系统的稳定性。
A modal controller design of defective system was presented, and it was applied in the flutter control problem of an airfoil.
讨论了亏损系统模态控制的设计方法,并将其应用在飞机机翼颤振的控制问题中。
In this paper a stiffness simulation calculation method of low speed flutter models of an aeroplane is studied.
本文探讨了飞机低速颤振模型刚度模拟计算的一种方法。
Our intuition usually makes itself known to us in a flash, and often has a physical component—a flutter in our stomachs, sweaty palms, or a chill.
我们的直觉通常会让我们通过一瞬间的感知觉察到它,这经常是一种身体的感受-胃部的一阵搅动,手掌出汗,或者是一个寒战。
A flutter of a flitting touch brushed me and vanished in a moment, like a torn flower petal blown in the breeze.
一霎飞触的撩乱扫拂过我,立刻又消失了,像扯落了的花瓣在和风中飘扬。
Panel flutter is a typical supersonic aeroelastic phenomenon taking place in high speed aircraft.
壁板颤振是发生在高速飞行器上的一种典型的超音速气动弹性现象。
The phenomena "limit cycle" occurred in wind tunnel test for active flutter suppression of a wing model are numerically explained using Harmonic Balance Method.
本文采用谐波平衡法,定量地解释了机翼颤振主动抑制风洞试验中出现的极限环现象。
When he had travelled a few minutes it would begin a remorseless thump, thump, thump, and then leap up and away in a painful flutter of beats that choked him and made him go faint and dizzy.
每走几分钟,它就会怦、怦、怦地狂跳不止,然后还要演变成一阵持续的、痛苦的上窜下跳的撞击,几乎让他窒息了,令他感到虚弱而眩晕。
This paper studies the flutter of a two-dimensional airfoil in the incompressible flow with cubic non-linearity in the plunging direction.
研究了在不可压缩流中具有立方非线性俯仰刚度的二元机翼的颤振问题。
We present a method of analyzing flutter characteristics of wing with nonlinear stiffness in supersonic flow.
提出了带结构刚度非线性的超音速弹翼的颤振分析方法。
In this paper an interior penalty function method is applied to minimize the weight of a wing structure under the constraints of flutter, strength and minimum gage.
本文运用内罚函数法,使一个在颤振、强度和最小尺度等约束条件下的翼面结构重量取极小值。
She was in a great flutter about traveling by airplane.
她对于乘飞机旅行感到紧张。
A suspension bridge project is taken as an example, in which the evolution of critical wind speed of flutter during bridge erection is studied by a multi-mode flutter analysis approach.
以某悬索桥设计方案为工程背景,应用多模态颤振分析方法,分析了该桥架设阶段颤振临界风速的发展趋势。
In this paper, the flutter derivatives of a thin plate model under the simultaneous actions of wind and rain are identified by using the Covariance-Driven Stochastic Subspace Identification method.
气动导数是大跨桥梁结构颤振和抖振分析中确定颤振临界风速和抖振响应的重要依据。
The identification of flutter derivatives for bridge sectional model has long been a key issue in long-span bridge flutter and buffeting analysis.
长期以来,桥梁断面颤振导数的识别都是大跨度桥梁颤抖振响应分析中的重点和难点问题。
The accuracy of modal parameter estimation plays a crucial role in flutter boundary prediction.
准确估计模态参数在飞机颤振边界的预测中具有重要意义。
A change in plate thickness reduces the flutter load drastically.
计算表明厚度的微小变化会引起颤振载荷明显的减小。
No. They flutter around in a circle.
都不对,他们只是在一个圈内拍打翅膀。
A new approach of full-mode flutter analysis with double parameters is proposed, which is realized in ANSYS, based on the full-order discretized physical model of structure.
基于结构的有限元全物理模型,提出了一种双参数全模态颤振分析方法,并在ANSYS中实现。
Both theoretical and experimental analyses are performed to investigate the limit cycle flutter bifurcation of a sweepback wing with an external store in the tip of the wing.
从理论及实验两方面,研究了带外挂后掠机翼的极限环颤振分叉现象,得到了稳定、半稳定及不稳定极限环。
From the characteristics of aerothermoelasticity, the effects of temperature in aerodynamic heating on the mode of a delta wing and the characteristic of its flutter were researched.
根据热气动弹性特点,探讨了气动加热温度对三角机翼模态特性和颤振特性的影响。
From the characteristics of aerothermoelasticity, the effects of temperature in aerodynamic heating on the mode of a delta wing and the characteristic of its flutter were researched.
根据热气动弹性特点,探讨了气动加热温度对三角机翼模态特性和颤振特性的影响。
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