查询词典 crossing

The main breeding methods of triploid grape such as crossing between diploid and tetraploid cultivars, endosperm culture, using 2n gametes and bud mutation etc.

探讨了三倍体葡萄育种的主要途径如利用二倍体和四倍体杂交、胚乳培养、利用2n配子和芽变选择等。

Therefore selection breeding of new cultivars with great ornamentalvalue and cold-resistant cultivars are very important Sexual crossing breeding and bud mutation selection breeding are conventional breedingmethods in Floribunda roses.

但因为其品种较为单一，且基本都依靠进口，缺乏具有我国自主产权的优良丰花月季品种，而且我国北方由于气温低，还没有可以广泛栽培并能露地越冬的品种，因此培育观赏性高的新品种和抗寒品种成为当前园林植物育种的热点。

The bus ran over a boy and his dog that were just crossing the street.

那辆公交车从当时横过街道的男孩和他的狗身上压过去了。

Based on the differences between the design value and the survey of the bridge deck elevation in constructing the pre-stressed and so on working condition, the model parameters are identified by ANN, and the beam camber of different sections are given. The results demonstrated that the ANN is efficient and the theoretical results fit well with that of forecasting the beam camber in construction.In this thesis, aim to the beam axis shape be exactitude for design, the internal force of the beam be appeased by design request, the concept of modem cybernetics is applied, At the same time, the effecting parameter has collected. The paper build the ANN model in predicting the beam camber an construction and discuss indetail the extraction of inputting nodes information when quoting the fundamental principle of ANN model and introducing research process of the improved BNN. According to them, ANN is applied in the construction control of prestressed concrete continuous bridge. It is successful for used in the No. 4 bridge of Xiangfan bridge over-crossing Hanriver brideg. To predict the construction camber of by ANN method is useful and effective.

本文以大桥成桥线形满足设计要求和成桥内力控制在设计容许范围内为目的，运用现代控制理论的思想，引用神经网络基本原理，详细介绍BP神经网络的研究过程，从而建立预应力混凝土连续梁桥施工预拱度的神经网络模型，并详细讨论了模型的神经网络结点信息的提取，在工程实例的基础上进行了数值计武汉理工大学硕士学位论文算，数值表明，将神经网络应用于预应力混凝土连续梁桥施工控制，获得了满意的结果，在预应力混凝土连续梁桥施工控制技术研究方面，具有方便有效、精度高的优点，具有良好的应用前景。

Hardy breed of cattle resulting from crossing domestic cattle with the American buffalo; yields ''.

一种由家养牛与美洲野牛杂交而得的强壮品种；比常规的牛产的肉更瘦。

Out the windows, we drink in the passing scene of cars on nearby highways,of children waving at a crossing, of cattle grazing on a distant hillside

乘着火车，我们领略着窗外流动的景色：附近高速公路上奔驰的汽车、十字路口处招手的孩童

Out the windows, we drink in the passing scene of cars on nearby highways, of children waving on a crossing, of cattle grazing on a distant hillside, of s

这是一条花鸟巷，在这个幽深的巷道里，摆放着各种各样的花草，还展示出许多唧唧喳

Out the windows, we drink in the passing scene of cars on nearby highways, of children waving at a crossing, of cattle grazing on a distant hillside, of smoke pouring from a power plant, of row upon row of corn and wheat, of flatlands and valleys, of mountains and rolling hillsides, of city skylines and village halls. But uppermost in our minds is the final destination.

我们欣赏着窗外的美景：附近高速公路上的小汽车，十字路口上挥舞着手臂的小孩，远处山坡上吃草的牛群，发电厂处升起的黑烟，一排接一排的小麦和玉米，平原和山谷，山峰和起伏的山坡，城市的轮廓和乡村的门厅，但是在我们心中最重要的是最终的目的地。

We are traveling by train. Out the windows, we drink in the passing scene of cars on nearby highways, of children waving at a crossing, of cattle grazing on a distant hillside, of smoke pouring from a power plant, of row upon row of corn ad wheatof flatlandsand valleys, of mountains and rolling hillsides, of city skylines and village halls.

乘着火车，我们领略着窗外流动的景色：附近高速公路上奔驰的汽车、十字路口处招手的孩童、远山上吃草的牛群、源源不断地从电厂排放出的烟尘、一片片的玉米和小麦、平原与山谷、群山与绵延的丘陵、天空映衬下城市的轮廓，以及乡间的庄园宅第！

We are traveling by train. Out the windows, we drink in the passing scene of cars on nearby highways, of children waving at a crossing, of cattle grazing on a distant hillside, of smoke pouring from a power plant, of row upon row of corn and wheat, of flatlands and valleys, of mountains and rolling hillsides, of city skylines and village halls.

乘着火车，我们领略着窗外流动的景色：附近高速公路上奔驰的汽车、十字路口处招手的孩童、远山上吃草的牛群、源源不断地从电厂排放出的烟尘、一片片的玉米和小麦、平原与山谷、群山与绵延的丘陵、天空映衬下城市的轮廓，以及乡间的庄园宅第。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。