铺设

The construction precision control point of chord surveying method for ballastless track ballast bed is introduced, including design of control system, layout of chord point, rational range of circle distance, control point of laying track and chord surveying.

介绍了无碴轨道道床竖曲线弦测法施工精度控制要点，即控制体系的设计，弦线点的设置，矢矩的合格范围以及轨排铺设和弦线量测的控制要点。

Innovative technologies for laying using special profiling and seaming machines make the seaming system particularly suitable for curved or conical shapes, dormer windows, connections with protruding elements.

创新的铺设技术利用了特殊的仿形及接缝设备，令接缝处与波状或圆锥结构、屋顶窗及突出构件的连接处完美结合。

Rigid PVC pipe production line is mainly used in the manufacture of the plastic PVC pipes with various tube diameters and wall thickness in the aspects such as the agricultural and nonstructural plumbing, cable laying etc. Thin set is composed of the conical twin-screw extruder, vacuum forming table , dragger, cutter, stirring up rack etc. The screws extruder and the extractor adopt the imported AC frequency employ the superior goods. The prime mover has the traction modes such as to claw, three-claw and so on. It may choose the saw blade cutting type or the planet cutting type. It is additionally attached with measuring apparatus and the intensifying device. The unit is of the reliable performance and high production efficiency. This company may allocate the special installation for the manufacture of the inner wall spiral coil and core ply blister tube set according to the clients requirements.

硬质PVC 塑胶管材出产线主要有阿谁与出产农用给排水、建筑给排水、线缆铺设等方面的各类管径、壁厚的塑胶PVC管材，该机组由锥形双螺杆挤出机、真空定形台、牵引机、翻料架等构成螺杆挤出机及牵引机采用进***流变频调速设置，真空泵以及牵引机电均采用优质产品牵引有二爪、三爪、四爪、六爪等牵引体式格局可选用锯片或者行星切割形式，另可计长及增厚装置，机组机能可靠，出产效益高，本公司可更具客户的要求，配备布置专用装置出产螺旋消音管以及芯层发泡管机组

Yes. From Roundwood reservoir in county Wicklow of a cubic capacity of 2400 million gallons, percolating through a subterranean aqueduct of filter mains of single and double pipeage constructed at an initial plant cost of 5 pounds per linear yard by way of the Dargle, Rathdown, Glen of the Downs and Callowhill to the 26 acre reservoir at Stillorgan, a distance of 22 statute miles, and thence, through a system of relieving tanks, by a gradient of 250 feet to the city boundary at Eustace bridge, upper Leeson street, though from prolonged summer drouth and daily supply of 12 1/2 million gallons the water had fallen below the sill of the overflow weir for which reason the borough surveyor and waterworks engineer, Mr Spencer Harty, C.

48流了。从威克洛郡的容积二十四亿加仑的朗德伍德水库，流经达格尔河、拉思唐、唐斯峡谷和卡洛希尔，流进坐落于斯蒂尔奥根那二十六英亩的水库，中间的距离是二十二法定英里。这条有着过滤装置的第一期施工的单管及复管地下引水渠，根据合同直线每码的铺设费为五英镑。再由一批水堰进行调节，以二百五十英尺的坡度在上利森街的尤斯塔斯桥流到本市界内。但是由于夏季久旱，再加上每天供水一千二百五十万加仑，水位已降到低于排水口。

The plan is to use it to carry out the electrification of the whole of China.

此计划将用这些电线来铺设中国的输电系统。

We turned left into the entranceway, which is nicely paved in sand colored flagstone and the discrete sign is simple bronze lettering on sand colored stone.

我们转向左边来到入口，入口用花色的砂岩铺设得很好，而且在花色砂岩上有间隔开的青铜印字。

The paper expatiates converyer belt self- lay technic prinicipium,means and advertent problems, besides does necessary explainer to its mostly technic guide lime,extend appvalue and society,economic benefits, at the moment, the paper has been underway to the means builing the leather belt, proposes the technique innovation point.

阐述了带式输送机输送带自铺装技术的原理、方法及铺装过程中应注意的问题，对其主要技术指标、推广应用价值和社会经济效益进行了必要的说明，对目前铺设输送带的方法进行了分析，提出了该技术的创新之处。

Over the past 10 years, carriers have installed fiber-optic cable throughout every major metropolitan area in the U.S.

在过去十年中，电话公司在美国的各个大城市中都铺设了光缆，并对sonet''。

Over the past 10 years, carriers have installed fiber-optic cable throughout every major metropolitan area in the U.S. and have standardized the use of SONET equipment.

在过去十年中，电话公司在美国的各个大城市中都铺设了光缆，并对SONET设备的使用进行了标准化。

Be in this of green miracle below, still extend the pipeline network that sets rubbish of join underground depth, the environmental protection the sources of energy that is used at rectifying a field to warm oneself --, firedamp will be released from this network.

在这个绿色奇迹的下面，还铺设有连接地下深层垃圾的管道网络，用于整座球场取暖的环保能源———沼气就将从这个网络释放出来。

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。