三是不稳定的空气状态。这是重要的局地热力条件。沙尘暴多发生于午后傍晚说明了局地热力条件的重要性。
Three is not stable air condition. This is an important local thermal conditions. Sandstorm occurs more often in the afternoon that incorporates the evening the importance of thermal condition.
鸭式无尾翼布局具有高度机动性和优越的超音速性能，但亦具有先天空气动力上之不稳定性。
The tailless delta-canard configuration is inherently aerodynamically unstable, which provides a high level of agility, particularly at supersonic speeds.
原因如下：当与(空气中的)氧气，(烹饪时的)温度接触或者接受光照时，某些蛋白质将变得不稳定。
Here's why: certain nutrients are unstable when exposed to oxygen (from the air), heat (from cooking) and light.
精密减速电机传动，无需要压缩空气，减少因气压波动的不稳定切料。
Precision reduction motor drive, without the need to compress the air, reduce the pressure fluctuations due to unstable cutting material.
目的：探讨CT空气-碘水双对比造影对诊断肩关节不稳定的临床意义。
Purpose: To study clinical importance of double contrast CT arthrography in the diagnosis of shoulder instability.
空气也会有某种程度的不稳定，使得通过望远镜看到的显象发生抖动。
There is a certain degree on un-steadiness of the air that causes a tremor of the picture seen through the telescope.
高空具有高湿位势涡度值的干冷空气叠加在低层扰动上，有利于不稳定层结的加强和降水发生。
The upper level dry and cold air with high moist potential vorticity value was superposed to the low-level disturbance, which was advantageous to instability stratification strength and precipitation.
稳定的空气，如果空气不稳定，气流会从山顶而不是侧面吹向山后并砸落地面，这时背风面存在强烈的下降乱流。
The stability of the air. If the air is unstable, the air may flow over the top of the hill instead of round the side, meaning that it will come crashing down in an area of sink behind the hill.
锅炉回转式空气预热器发生二次燃烧的主要原因与油枪燃烧不稳定、内部有漏油和吹灰蒸汽压力不够等相关。
The main reasons to the rotary air pre-heater secondary combustion are related to unstable oil gun combustion, internal oil leakage and insufficient soot-blower steam pressure, etc.
新鲜的空气是不稳定的形式 的氧。
否则，例如，赫可能具有太多的腿在空气中在同一时间，变得不稳定，并翻倒。
Otherwise, for example, Hector might have too many legs in the air at one time, become unstable, and fall over.
研究表明，影响空气钻井井壁稳定的主要因素有三个：力学不稳定，水化不稳定和岩体破裂或弱面不稳定。
Preexisting research shows that there are three main factors that affect the borehole stability of Air-Drilling: mechanical reason, hydration reason and the Weaked surface instability reason.
留意储存以下四样食品的期限。因为：某些营养成分无论是暴露在氧气中(通过空气)，或是热气中(来自煮食)和光之中都变得不稳定。
Keep track of how long you store these 4 items. Here's why: certain nutrients are unstable when exposed to oxygen (from the air), heat (from cooking) and light.
缸内残余废气过多以及废气与新鲜空气的过度混合是小负荷时燃烧不稳定的一个主要原因。
The existence of overmuch residual exhaust gas together with its over mixing with fresh charge is one of the main causes of unstable combustion at low load.
铝质材料在空气中是极不稳定的，容易形成用肉眼难以识别的氧化膜。
Aluminum material in air is very unstable easy to form with the naked eye, it is difficult to identify the oxide film.
由于空气的来源是大气，干燥效果会因大气湿度而异，故此干燥效果不稳定，一般亦达不到50ppm的要求。
As the source of air is the atmosphere, the drying effect is dependent on the air humidity. The drying is unstable and in any case could not reach the 50 PPM requirement.
由于空气的来源是大气，干燥效果会因大气湿度而异，故此干燥效果不稳定，一般亦达不到50ppm的要求。
As the source of air is the atmosphere, the drying effect is dependent on the air humidity. The drying is unstable and in any case could not reach the 50 PPM requirement.
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