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Accuracy inspection of subcompartment division based on hi-resolution remote sensing imagery;

基于高分辨率卫星图像的小班勾绘精度检验

ArcGIS-based Subcompartment Polygon Splicing in Forest Resources Inventory

基于ArcGIS的森林资源规划设计调查小班多边形拼接方法的探讨

Focus on the problem of big differences in computing aspect factor of subcompartment between two methods of most eigenvalue based on DEM and scalar quantity,a new vector method for the aspect factor of subcompartment is proposed in terms of the characteristics of digital terrain analysis and the theory of vector statistics.

针对目前基于DEM的最大特征值法和标量平均法在小班坡向求算中存在误差大的问题,基于地形分析特点和矢量统计原理提出了一种计算小班坡向的矢量方法,并对比了该方法与前2种方法的实验数据计算结果,表明该方法求算的小班坡向与森林资源调查规程的要求更加吻合。

This class is too large;we shall have to divide it.

这个班级太大，我们必须把它分成小班。

work in three shifts of eight hours

每班八小时的三班制

Off-going person:Mr. Li, On-coming person: Jack

交班人: 小李, 接班人：杰克

remedial classes, lessons, groups, etc

补习班、 课、 小组等

Classes are much smaller at the private schools.

私立小学的班要小得多。

Our headteacher divided our class into eight groups.

我们班主任把我们班划分成八个小组。

A class at an elementary school or the pupils in it.

班级小学的班级或其中的学生

Ms Spain: Male organs in our country are like our very own Bullfight.

西班牙小姐：西班牙的男性器官像斗牛。

Practice and Exploration on the Collective Construction of the Graduating Class in Primary Schools;

小学毕业班班集体建设的实践与探索

We work an8 - hours shift.

我们每班工作8小时。

Each shift in the factory works for eight hours.

工厂里每班干八小时。

He has four hours'call - in pay.

他有四小时的加班费。

Zhao Xiaomei is the monitor this week.

这周赵小梅是班长。

The ferryboats run every half hour.

渡船每半小时开一班。

divide the class into small groups

把那个班分成几个小组.

I go on duty in half an hour.

半小时以后我要去值班。

My flight was an hour late.

我那趟航班晚了一小时.

The up train leaves every hour.

上行火车每小时一班.