doub
英
美
pref./abbr. 两倍；两倍的
双语例句
- The relationship between environmental factors ( climate and soil) and plant life form gradient was analysed by doub sieving progressive regression method, and mathematical models were set up.
并用双重筛选逐步回归的方法分析了环境（气候和土壤）因子与植物群落生活型谱梯度的关系，建立了相应的数学模型。 - This paper gives two methods& the small triangle method and the doub-le triangle method for simulating hinge joints in order to analyse the fra-mes with hinge joints, using the simple frame program.
本文提出了两种增设杆件和刚结点来模拟铰结点的方法&小三角形法和双三角形法，以使能利用简单的平面刚架程序来计算带有铰结点的刚架。