unsteady

adj

1. not firmly or solidly positioned

e.g. climbing carefully up the unsteady ladder
an unfirm stance

Synonym: unfirm

2. subject to change or variation

e.g. her unsteady walk
his hand was unsteady as he poured the wine
an unsteady voice

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

e.g. 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。
e.g. 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。

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

e.g. His voice was unsteady 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 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。

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 slightly unsteady 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