看来天气有些不稳定。
举个极端的例子，以单一作物为主的农田是如此不稳定，一年的坏天气或单一害虫的入侵可以摧毁整个作物。
To take an extreme example, farmlands dominated by a single crop are so unstable that one year of bad weather or the invasion of a single pest can destroy the entire crop.
即使天气好的时候，食盐供应也不稳定。
诸如天气指数保险等风险管理新方法可以帮助农户应对粮食生产不稳定问题。
New approaches to risk management such as weather based index insurance can help farmers cope with uncertainty.
现在我们的水源更少，天气模式也更不稳定。
不稳定的降雨量意味着农民再也无法预测天气，已经失去了他们的农作物，这是对他们家庭而言至关重要的食物来源。
Erratic rainfall means farmers can no longer predict the weather and have lost their crops which are a vital source of food for their family.
天气肯定是更不稳定，虽然不一定总是更热。
Certainly far more erratic, though not necessarily always hotter.
原本计划在抵达墨尔本的第一天就去发现摩天台88，但是因为当天天气不稳定，就留到最后一天才去。
Originally planned to visit Eureka Skydeck 88 on the first day we arrived in Melbourne, but we postponed the trip to last day due to unstable weather on first day.
天气情况不稳定，请系好您的安全带。
The air conditions are uncertain, please fasten your seat belts.
一个很好的地方是，非常愉快，虽然天气有时会不稳定。
A pretty good place to be, very pleasant, although the weather can be erratic at times.
分析指出，该飑线系统是由高空槽前型的上干下湿引起的不稳定强对流天气。
The squall line is a kind of instable and strong convective weather caused by the air with upper-layer dry and lower-layer wet in front of the upper-troposphere trough.
本文综合介绍天气预报问题中的非线性计算不稳定的含义、计算现象和处理办法。
In this paper, the concept, phenomena and handling methods of nonlinear computational instability in the problems of numerical weather prediction are discussed.
高空前倾槽的结构加大了大气的垂直不稳定，是引起强对流天气的重要原因。
The structure of the forward-tilted trough increases the atmospheric instability and caused the severe convective weather.
可以根据有、无潜在不稳定能量，预报新加坡未来12小时内的天气；
The 12 hours' weather forecasting over Singapore can be issued according to the extent, of latent instability energy.
在特定地区的天气由多重因素驱动，发生在这样复杂的和不稳定环境；没有一种单一天气事件仅仅归因为气候变化。
Weather in a given region occurs in such a complex and unstable environment, driven by such a multitude of factors, that no single weather event can be pinned solely on climate change.
结果表明：这次冰雹天气过程是由于低层大气能量不断积累、低空切变线触发不稳定能量释放而产生的。
The results showed that the process was happened by the reasons of atmosphere energy accumulating continuously and unstable energy releasing touched off by shear line in lower level.
了解强不稳定度参数及其使用特性无疑对强对流天气的分析与预报有很大帮助。
To know the environmental instability parameters and their character will undoubtedly be beneficial to severe weather forecasting.
科学家说，他们的发现可能有助于工程师开发出微型飞行器，来应对不稳定的天气，甚至可以改善洗衣机的离心烘干机。
The scientists said their findings could help engineers to develop micro air vehicles that could cope with unsettled weather or even washing machines with an improved drying spin. it.
它能预示强对流天气层结的不稳定特征和高能量。
Warning index pattern show convective instability characteristic and high energy.
本场天气最近很不稳定。
对新一代天气雷达CINRAD／SA进行日常维护、检测可及时发现并消除不稳定因素，使雷达处于良好的工作状态，减少使用中的故障。
Daily maintenance for the CINRAD/SA radar can discover unsteady factors at real time and remove it, but also can make the radar be placed in good status and reduce trouble when using it.
天气尺度动力条件和局地层结不稳定结构都表明，此次局地强天气的发生有良好的环境条件。
The dynamic conditions of synoptic scale and local unstable stratification structure show that there are suitable conditions for the occurrence of locally developing convective systems.
一些对流单体和对流群天气会通过地形影响而成，而且但大气不稳定时，这些影响会延伸到下风方向。
Some of the cells and clusters are undoubtedly set up through orographic effects and these influences may extend well down-wind when the atmosphere is unstable. 2.
在天气持续不稳定时，请于上课前两小时查询恶劣天气报告。
If unstable weather conditions persist, please check the Rainstorm Alert 2 hours prior the commencement of that class.
在天气持续不稳定时，请于上课前两小时查询恶劣天气报告。
If unstable weather conditions persist, please check the Rainstorm Alert 2 hours prior the commencement of that class.
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