approximate vt. 1.使接近。 2.接近;走近。 3.近似,约计。 4.模拟。 5.估计。 approximate a solution to a problem 使问题近于解决。 approximate something to perfection 使某物臻于完善。 The total income this year approximates 10,000 dollors. 今年总收入接近一万元。 approximate the motions of the stars in a planetarium 在天文馆中模拟行星的运行情况。 We approximated the distance at 100 miles. 我们估计行程距离为100英里。 vi. 近于。 His income this year approximates to 8,000 dollars. 他今年的收入接近八千美元。 adj. 近似的,大概的。 an approximate account 简要的说明。 an approximate date 大约的日期。 the approximate estimate 大概的估计。 an approximate number 概数。 an approximate value 近似值。 adv. -ly 大体,大致。
The results attained are as follows . on account of the strongly coupling character of parameters which have an effect on scramjet performance , the approximate evaluation models of scramjet inlet diffusion performance and the ignition problem in direct - connected experiments are established by neural network methodology 针对发动机性能影响因素强烈耦合的特点,采用bpnn和rbnn神经网络方法,分别建立了超燃冲压发动机进气道扩压性能和直连式发动机点火性能的神经网络近似评估模型,得到了很好的逼近效果和预测能力。