查询词典 tread as if on thin ice -- to be very careful

The weak conductibility of ice, the changes of resistance and capacitance of air, ice and water varied with temperature are infroduced, the novel principle and model for all-weather automatic monitoring and measuring based on the physical characteristic difference of air, ice and water are discussed.

本文介绍了冰的弱导电性特点，基于空气、冰与水的电阻、电容值随温度变化的特点，提出利用空气、冰与水物理特性差异实现对冰、水情全天候自动化监测的基本原理与系统实现模型，展望了这一方法的应用前景及今后研究的方向。

The following key future research fields are needed to understand and predict Antarctic Ice Sheet mass balance: Observation and modeling of the surface elevation changes, determination of surface mass balance and its distribution over drainage basins as well as fluxes at the grounding lines and the bottom melting underneath ice shelves, understanding of the deglaciation history, development, comparison and improvement of all kinds of models related to modeling and prediction of ice sheet mass balance.

南极冰盖物质平衡未来的重点研究领域是开展冰盖表面高程变化的监测与模拟，确定表面物质平衡及其在各冰流盆地的分布，着地线的冰流通量，冰架底部的融化，了解冰后期冰盖退缩的动力过程，以及开发、对比和改进与冰盖物质平衡模拟和预测相关的各种模型。关键词：南极冰盖；物质平衡；进展与展望

For balances the electrical network load, to unify the valley peak electrovalence policy which Changsha implements, gathered the air-conditioning system with ice storage and the conventional air-conditioning system efficiency to the ice carries on the analysis comparison thus to determine this construction suited using the air conditioning systems with ice system.

为平衡电网负荷、削峰填谷结合长沙市实行的谷峰电价政策，对冰蓄冷空调系统与常规的空调系统的经济性进行分析比较从而确定了此建筑适合应用冰蓄冷空调系统。

Thermal stress calculation in ice cover is a nonlinear problem, this includes edgeconditions nonlinearity, ice specific heat and conductivity nonlinearity, and ice elasticmodulus and linear thermal expansivity nonlinearity.

冰层温度应力问题是非线性问题，包括边界非线性、冰的比热C和导热系数K的非线性、冰弹性模量和热膨胀系数的非线性等。

In present research, the extremal ice force and dynamic ice force are the main ice force.

目前在对冰荷载的研究上，主要有极值静冰力和交变冰力两种。

According to these two aspects, in the present paper, the data of ice temperature and ice thickness measured in Fenhe River, Taiyuan are firstly analyzed to get the characteristics of ice temperature field.

依次从这两个方面着手，首先对太原汾河二库冰温和冰厚的观测资料进行了分析，得到了有关冰层温度场的特性。

Glaciology|Glaciologically,''ice age'' is often used to mean a period of ice sheets in the northern and southern hemispheres; by this definition we are still in an ice age ( because the

冰河通常用来指一段冰盖在南北半球；由这个定义，我们还处在一个冰期(因为南极和格陵兰冰盖存在)。

The Grove Mountains expedition is one of the highlights of this expedition, after surveying and mapping personnel have conducted four times the Grove Mountains mapping, geology and glaciology comprehensive survey, field mapping of the Grove Mountains, the surface of the core area of 110 square kilometers topographic maps and maps of protected areas; emplaced 10 geodetic control points, seven ice-flow monitoring stations; the use of different resolution optical images, SAR images, carried out the distribution of the ice fissure information extraction research, production of the Grove Mountains region Flat satellite image maps, digital elevation models and a wide range of blue ice distribution maps, for my recovery to the 9834 Antarctic meteorites have made contributions.

格罗夫山考察是本次考察的亮点之一，此前，测绘人员已进行过4次格罗夫山测绘、地质与冰川学综合考察，实地测绘了格罗夫山核心区110平方千米表面地形图和保护区地图；布设了10个大地测量控制点、7个冰流速监测站；利用不同分辨率光学影像、SAR影像等，进行了冰裂隙分布信息提取研究，制作了格罗夫山地区平面卫星影像图、大范围数字高程模型及蓝冰分布图，为我国回收到9834块南极陨石作出了贡献。

The annual Ice and Snow Festival, Changchun top of the ice competitions are fierce and fiery, dozens of organizations, hundreds of people in the world of ice and snow, race, is a strange landscape.

每年的冰雪节，长春的冰上陀螺比赛活动都十分的激烈和火热，组织几十、几百人在冰天雪地里比赛，真是一种奇特的景观。

As one of the four global famous Ice and Snow Festivals, Harbin International Ice and Snow Festival enjoys a considerable popularity. And Harbin Ice and Snow World is a good introduction for the festival.

哈尔滨市长石忠信介绍，作为世界四大冰雪节之一，中国·哈尔滨国际冰雪节具有很高的国际知名度，而哈尔滨冰雪大世界则是冰雪节一张精致的名片。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。