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- In order to forecast accurately height of each diameter class of poplar in Jiangsu Province,the quadric parabola function with five parameters was established. 用江苏省杨树解析木编制了杨树标准树高曲线模型,该模型引入了适宜的林分控制因子(树龄和地位指数),是具有统计学意义的树高曲线模型。
- Study on Estimation of Stand Diameter Class Volume and Merchant Volume 林分径阶蓄积量与材种出材量测算的研究
- This lens can magnify 20 diameter. 这个透镜能放大20倍。
- The diameter of the tree-trunk is about 2 meters. 这树干的直径大约是2米。
- Kindly send us two samples of each class quote for. 报价时，请对每一个等级的各寄两个样品。
- The average age of the boys in this class is fifteen. 本班男生的平均年龄是十五岁。
- Henry is nowhere when it comes to the race for class president. 亨利在竞选级长中被远远抛在后面。
- The axis of a circle is its diameter. 圆的轴线是其直径。
- Measure the diameter of this circle. 量一下这圆的直径。
- We must gauge the diameter of wire first. 我们必须先测量电线的直径。
- He is liked by the classes and the masses. 上层社会的人士和普通的民从都喜欢他。
- She got cold feet when asked to recite in class. 当她被叫起来在班上背诵时害怕了。
- There is great animosity between the two classes. 这两个阶级之间有很深的仇恨。
- A tube with a very small internal diameter. 毛细管一根内径十分细小的管子
- She was kept in for an hour for talking in class. 她因上课说话被罚留校一小时。
- The students in our class number thirty. 我班总共有三十名学生。
- I was out and away the handsomest man in the class. 我是当时全班最帅的男子汉。
- Taxation bears heavily on all classes in Britain. 税收使英国各阶层均感压迫。
- Soon I dropped behind the rest of the class. 不久我就落在班上其他同志后面了。
- Pele was in a class of his own as a footballer. 贝利是举世无双的足球健将。
