Adjective:

1. subject to change or variation;

   "her unsteady walk"
   "his hand was unsteady as he poured the wine"
   "an unsteady voice"
   

2. not firmly or solidly positioned;

   "climbing carefully up the unsteady ladder"
   "an unfirm stance"
   

1.脚步不稳的；身体摇晃的
If you areunsteady, you have difficulty doing something, for example walking, because you cannot completely control your legs or your body.

e.g. The boy was veryunsteady and had staggered around when he got up...
男孩站立不稳，并且起身后四下走动时步子踉跄。
e.g. He poured coffee into the mugs, and with anunsteady hand, held one of them out to David.
他把咖啡倒进杯里，然后一只手颤巍巍地端了一杯给戴维。

unsteadily
She pulled herself unsteadily from the bed to the dresser.
她颤巍巍地由床边挪到梳妆台前。

2.不稳定的；不可靠的；无法捉摸的；变幻无常的
If you describe something asunsteady, you mean that it is not regular or stable, but unreliable or unpredictable.

e.g. His voice wasunsteady and only just audible...
他的声音发颤，而且小得只刚刚能听见。
e.g. She knew first-hand the impact anunsteady parent could have on a sensitive young girl.
她有亲身体验，知道情绪变化无常的家长对一个敏感的小女孩会产生什么影响。

3.不牢固的；不稳固的；不结实的
unsteady objects are not held, fixed, or balanced securely.

unsteady

e.g. ...a slightlyunsteady item of furniture.
一件稍微有些不结实的家具

1.

1. 不稳定：萨克斯入门教程下载吹嘴含得太多,会产生吵杂刺耳(raucou)的声音. 下唇翻得太少,会比较无法控制. 下唇翻得太多,也会导致一个虚弱(weak)不稳定(unsteady)的声音产生. 下巴向前推挤,会产生吵杂刺耳(raucou)的声音,或是无法控制.

2. 非定常：并不需要喷嘴流道尺寸变化之详细资料. 所造成之总质量流率的误差,例如:滑动(slip)及气泡体积因流场压力改变混合室之出口压力亦即喷嘴(Nozzle)的入口压力. 般而言,喷嘴的入口效模拟与对应. 因此,开发一套二维甚至是三维的,非定常(unsteady)的,

3. 不稳定的：Totter蹒跚 |unsteady不稳定的 | Sway摇晃

4. 不安定的：unstable roof 脆性顶板 |unsteady 不安定的 | unstemmed explosive 无炮泥的炸药

• Their raft was far too unsteady for standing on.

  出自：G. Santayana

• Still rather unsteady on his feet, Odin lurched across the room.

  出自：K. Crossley

• I ran to fetch it; but I was..unsteadied..and I broke one glass.

  出自：R. L. Stevenson

She is still a little unsteady on her feet after the operation.

手术以后她还有点站不稳。

an unsteady hand

颤抖的手

The boy was very unsteady and had staggered around when he got up...

男孩站立不稳，并且起身后四下走动时步子踉跄。

He poured coffee into the mugs, and with an unsteady hand, held one of them out to David.

他把咖啡倒进杯里，然后一只手颤巍巍地端了一杯给戴维。

His voice was unsteady and only just audible...

他的声音发颤，而且小得只刚刚能听见。

She knew first-hand the impact an unsteady parent could have on a sensitive young girl.

她有亲身体验，知道情绪变化无常的家长对一个敏感的小女孩会产生什么影响。

...a slightly unsteady item of furniture.

一件稍微有些不结实的家具

By the analysis of the unsteady pumping test data near the hydrogeological boundary.

通过水文地质边界附近非隐定流抽水试验资料的分析.

The unsteady aerodynamic and moment characteristics of the models and the unsteady wall pressure are measured.

研究中测量了模型的气动力及力矩特性,同时测量了风洞的非定常壁压.

An unsteady thermal conduction model of its envelope was built and the dynamic load was calculated.

以某一低温实验装置为例,建立其围护结构非稳态传热数学模型,对动态负荷进行计算.

Analytical results show that the unusual noise source is chiefly due to unsteady combustion.

测试结果表明,国产机噪声异常主要是由于不稳定燃烧造成的.

Ambient pressure and correlation between parameters have strong influence on PDE performance when working is unsteady.

以非稳态方式工作的脉冲爆震发动机(PDE),环境压力、参数之间的强相关性对其性能影响很大.

The unsteady flows in a agitator calculated numerically, and compared with the author 'ufffd 'ufffd s experimental data.

研究了搅拌器内非定常流场的分布, 并与实验结果做了比较.

Presently the low and unsteady yield is a main problem existing in Carya cathayensis prodution.

目前山核桃(Caryacathayensis Sarg.)生产中,存在的主要问题是产量不稳不高.

The unsteady condition of mill vibration that it was caused vibration of strip was investigated.

分析研究了带材横向振动导致轧机振动失稳的条件和机理.

Especially if i feel unsteady and insecure i sometimes try to cover this with jokes.

尤其是当我感到不稳定和不安全时,我会试图用玩笑掩盖这些.

Results show that EM does provide unsteady design of turbomachinery an operable degree of freedom.

结果表明,缘线匹配为叶轮机非定常设计提供了可操作的自由度.

One, pass to the floor person difficulties existence of description, outstanding floor claim of unsteady.

第一, 通过对底层人物艰难生存的描绘, 突出底层诉求的不稳定性.

Numerical calculations were performed to investigate the effects of unsteady wakes on film cooling.

利用数值计算的方法研究了非定常尾迹对动叶气膜冷却效率的影响.

The one dimensional model is employed to simulate the daily regulating unsteady flows below Shuikou reservoir.

用一维不稳定流数学模型模拟枯水期水口电站下游日调节不稳定流.

This type of flow has not only complex flow separation , but character of unsteady bringing noise.

这类流动不仅具有复杂的流动分离结构, 而且常常不稳定,也是噪声发生的主要区域.

He's a bit unsteady on his pins.

他的两腿还有点站不稳.

How can you still use this unsteady stool.

这只希里光当的板凳,怎么还在用啊?

Blade element theory was used to calculate unsteady aerodynamic loads in linear and nonlinear regimes.

桨叶气动力计算采用时域非定常空气动力计算模型,包括非线性分离和动态失速的影响.

Gas ejection from gun muzzle is a more complex unsteady process.

火炮的后效期现象是一种比较复杂的非定常气体动力学现象.