换置

The line enlarges L/D ratio and widens mixing smelt zone on the extruder screw pot which is specially processed using quality steel.For the change filter system of the flat film stretching line,we apply advanced foreign automatic belt change filter.The bakeboard is changed into foreign advanced hot drawing oven and principal technical index of the line nears international advancing level. The line has the performance of high speed、top yield、 low energy consumption、 good forming quality of the fiber drum.

主要元器件选用欧美等国外优质产品；挤出机配置合金钢硬齿面专用减速箱，螺杆料筒加大长径比和混炼段，并采用优质合金钢特殊处理，过滤系统可选用自动带式换网或双筒长效过滤网，平膜模头采用优质耐热模具钢、衣架式设计制作；提膜、剖丝、牵引采用一体龙门架形式；牵伸加热可选用双风道热风烘箱或保温烘板；牵伸、定型机采用墙板定位，辊筒内置卸荷装置；配置磁传动恒涨力卷绕机。

The model of CFB boiler components such as gas-solid separator, external heat exchanger, nonmechanical valves and heat transfer surfaces are considered in the overall model.

依据循环流化床锅炉各部件包括分离器、返料机构、外置式换热器及对流受热面的运行特点，对这些部件的模型也进行了讨论并给出。

This approach encrypts digital image hy permuting on bitmap after pretreatment,and decryption pixels＇ values of the image which is attacked by shear transformation is computed by using neighboring pixels＇ values,it can protect the encryption image from shear transformation attack.A binary sequence nonlinear generating method based on chaotic system is also presented.

基于数字图像灰度矩阵位平面进行置乱加密，在恢复过程中通过象素邻域灰度信息进行恢复，能够有效抵御针对加密图像的剪切变换攻击，同时给出了一种非线性的、应用高维混沌系统产生二值序列的方法。

The same lotus of our clime blooms here in the alien water withthe same sweetness, under another name.

我们处所的荷花又在这生疏的水上谢了花，置出共样的幽香，只是名字换了。

It comprises an electrostatic, heat tube, heat exchanging dust remover.

将带有肋片的热管置入静电除尘器中，构成静电热管式除尘器，使静电力和温度场的作用有机结合，以提高除尘和换热效率。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。