查询词典 be snowed under

I cannot remember a Christmas when it snowed so much.

我想不起哪一年的圣诞节下过这么大的雪。

We were snowed up for three days in our cottage in the mountains.

我们被雪封在山上的小屋里3天。

It's too late for going to watch the football game,besides,it has snowed yet.

现在去看足球比赛已经太晚了，何况，又开始下雪了。。

It broke grey and cold in the first day, and on the second snowed.

他这么疲惫和饥饿，本来是不应该来这里的，对比太鲜明了。

It snowed continuously for half a month,blocking the railways,highways,and runways in the airfields.

南方下起了百年不遇的大雪，而且一连十几天，天气特别的寒冷。

It snowed continuously for half a month,blocking the railways,highways,and runways in the airfields.

大雪封住了铁路，公路，飞机的跑道，大雪破坏了输电线路，通信。

We were snowed in for three days last winter by the blizzards.

去年冬天，一场暴风雪把我们困在家里三天没出门。

Experts from meteorological department pointed out that the reason why it snowed at that time is that the atmospheric pressure above the area dropped suddenly to 950 millibars. It was 20 millibars lower than the limit of the normal atmospheric pressure. In June, 2000, the temperature in Koppaonike City, a small town in the plain of Yugoslavia, was over 15 degrees centigrade all along. But in midday of June 17 it dropped suddenly to zero or below. Then a heavy snow fell on. This surprised the local residents. People went to street one after another to have a look.

气象部门指出，当时出现雷电的原因是当地上空气压骤降至950毫巴，比正常气压极限低了20毫巴。2000年6月，南斯拉夫平原小城科帕奥尼克的温度一直在15摄氏度以上，但17日中午，小城的温度骤降到摄氏零度以下，接着天空就飘起了大片的雪花，这一情景让当地的居民惊奇不已，纷纷上街观看。

5 Those hours that with gentle work did frame The lovely gaze where every eye doth dwell Will play the tyrants to the very same, And that unfair which fairly doth excel: For never-resting time leads summer on To hideous winter and confounds him there, Sap checked with frost and lusty leaves quite gone, Beauty o'er-snowed and bareness every where: Then were not summer's distillation left A liquid prisoner pent in walls of glass, Beauty's effect with beauty were bereft, Nor it nor no remembrance what it was.

五 那些时辰曾经用轻盈的细工织就这众目共注的可爱明眸，终有天对它摆出魔王的面孔，把绝代佳丽剁成龙锺的老丑：因为不舍昼夜的时光把盛夏带到狰狞的冬天去把它结果；生机被严霜窒息，绿叶又全下，白雪掩埋了美，满目是赤裸裸：那时候如果夏天尚未经提炼，让它凝成香露锁在玻璃瓶里，美和美的流泽将一起被截断，美，和美的记忆都无人再提起：但提炼过的花，纵和冬天抗衡

The thesis can be divided into five parts as follows: First, the structural characteristics of finned-pipe evaporator are analyzed. After selecting suitable microelement controller, the heat-transfer and mass-transfer processes are analyzed for every microelement under the conditions of dryness, wetness and frostiness. Based on previous equations, some parameters of frostiness are confirmed and the frost-growing model is set up under frost condition. Some hypotheses are postulated and with the help of the equation of mass-conservation, energy-conservation and momentum-conservation, the evaporation model which fits in the dynamic simulation is built, which set a solid foundation for system simulation. Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. Third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet-parameter on evaporator. Fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio-parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping.

本文的主要内容如下：1对翅片管蒸发器结构特点进行分析，选取适当的微元控制体，就干、湿和霜工况下对每个微元分别进行传热传质分析，基于经验关系式确定霜的有关参数，对于霜工况下的霜生长建立模型，经适当假设，运用质量守恒、能量守恒和动量守恒方程建立适合动态仿真的蒸发器数学模型，为系统仿真奠定基础； 2对蒸发在大扰动下的开、停机过程，运用动态集中参数模型进行分析和计算，为更好地描述制冷系统运行的全过程奠定基础，同时也为制冷系统实现自动控制提供一定的理论基础； 3对蒸发器正常运行过程，运用动态分布参数和参数间定量耦合的观点来分析和计算，为更好地了解稳态工况下各点参数的变化情况及各入口参数对蒸发器动态特性的影响即蒸发器性能对各参数变化的敏感性； 4编写翅片管蒸发器动态特性仿真计算程序，可以计算不同边界条件和初始条件下的制冷剂热力参数、空气温湿度和霜厚度分布场，实现对翅片管蒸发器在干、湿和霜工况下的动态仿真。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48