查询词典 difficult

On the basis of sensitivity analyses using the PROSAIL model, the present study demonstrates an approach that uses a neural network based on image classification incorporated in PROSAIL for accurate retrieval of LAI. By including the soil reflectance index in the original PROSAIL model to take the place of soil background reflectance parameters that are difficult to determine, specific neural networks are constructed corresponding to individual types of vegetation cover.

在PROSAIL模型敏感性分析的基础上提出了一种基于影像分类的神经网络反演方法，引进了土壤反射指数用于替代原模型中难以确定的土壤背景反射参数，分别针对不同植被类型建立各自的神经网络，对经过大气纠正后的Landsat ETM+影像进行了模拟实验并同野外实测LAI数据进行比较。

The article mainly introduces the development background of this task, the function that should be finished and the progress of development, and also explains the point, design thought, difficult technology and the way out.

在满足需求的同时，也体现出了操作简便、友好实用、安全可靠等特点。

But because the backlog of requests is so large, it's very difficult to get off, Steinbock said.

但由于积压的要求是如此之大，它是非常困难的要下车， steinbock说。

Which was the most difficult backstage experience you had?

这是最困难的后台经验，你怎么过的？

Backstroke is a difficult event because you can see where you are going.

仰泳是一种比较难的项目因为你看不清自己前行的方向。

My boss is difficult to work for—She's always very badtempered.

我的老板很难取悦，她脾气总是很坏。

This problem has been regarded as a bafflingly difficult one of the present time with which China's jurisprudential circles as well as legislators are confronted.

这是当下困扰着中国法学界与立法者的一大难题。

This can then imagine the baggage car through the section from time to time how difficult, how dangerous.

由此可想像出当年的辎重车通过这段路时有多么艰难、多么危险。

And because you have a trade surplus it's very difficult for the baht to weaken.

这主要是国内需相对疲软因此，在拥有贸易顺差的情况下进行货币贬值是非常困难的。

Imagine trying to carry a hot, baked potato in your hand. It would be difficult, even painful, to do so.

想象一下，试着将一个烤过很热的土豆拿在手中，那将是非常困难的，甚至很疼痛。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。