forehearth

Temperature difference in forehearth and its influences on product quality were analyzed.

介绍了料道内玻璃液温度差的形成及对产品性能的影响。

The digital design of plastic pipe and the preparation of the model are accomplished according to the principle of reverse engineering and the technology of rapid-prototyping, and the re-design of plastic pipe is realized.

根据逆向工程原理和快速原型制造工艺,完成了塑料管道数字化的逆向工程设计和模型的快速原型制备,实现了塑料管道的再设计。

The application of new materials has greatly promoted the development of plastic pipe.

新材料的应用为塑料管道的发展起着重要的推动作用。

Types and characteristics of the plastic pipe for municipal drainage engineering are described.

简述了市政排水塑料管道的种类及特点,并结合工程实例重点介绍了城市排水管道改造中几种塑料管道施工新技术,包括衬装法、架空法等施工方法,详述了施工要点及各自的优缺点。

The removal of the condensed material in runner of the traditional typical structure of point gate of injection moulding was difficult when the cavity bottom of main runner was deep and long.

针对常用手工取浇道凝料的点浇口注射模,如果型腔板上的主流道杯较深长,则会出现取浇道凝料较困难的问题。

Current situation and development trend of plastics pipe industry in China;

我国塑料管道产业的现状和发展趋势

Technical Characteristic and Advance of Plastics Pipe;

塑料管道的技术特性与进展

fitting ,pipe or tube, general use, of plastics

塑料管道或管子配件,一般用途

Comprehensive economic rvaluation of water-supply pipes and drainpipes and productivity forecast of plastics pipe

给排水管道经济综合评价及塑料管道产量预测

Current situation and development trend of plastics pipe industry in China;

我国塑料管道产业的现状和发展趋势

drip irrigation; trickle irrigation: The application of water to the soil through small orifices in plastic pipelines.

滴灌:通过塑料管道的小孔对土壤进行浇灌。

Choi steel activities room, stainless steel products, plastic pipe manufacturing.

彩钢板活动机房,不锈钢制品,塑料管道制造.

The Hydraulic Characteristics and application of Bartlett fluxible Pipes

喷灌塑料管道水力阻力系数λ的实验研究

Development of the timer for plastic pipeline welding equipment and its application in the coal mine

煤矿井下塑料管道焊接装置计时器的研制及应用

Then a few years ago, they switched to industrial plastic.

没过几年 管道又换成了工业塑料的

PPS covers, plastic pipes pieces, plastic products manufacturing sales; Control of the watercourse, fittings wholesale, retail.

PPS井盖、塑料管件、塑料制品制造销售；水道管件、洁具批发、零售。

Design and Construction of PP-R Plastic Pipe in Residential Water Supply Piping Works;

住宅给水管道工程中PP-R塑料管的设计与施工

Application of interluding method with plastic pipes inrehab and alteration of old gas pipes;

塑料管穿插法在旧燃气管道修复改造中的应用

The Friction Measurement in Corrugated Plastic Pipe as Prestressing Cable Duct

采用塑料波纹管的预应力管道摩阻试验研究

The exact inception of the use of poly tubes in the United States is unknown.

人们并不知道美国开始使用塑料管的确切时间。

Development of Inductive Heater in Butt-fusion Welding Machine for Pressurized Plastic Pipes;

塑料压力管道热熔对接焊机感应加热板的研制

Gangsu pipelines( water supply Chensu pipeline), and pieces, manufacture, marketing.

钢塑管道（水衬塑管道）管件、造、售。

Especially for the tough, ductile materials used in nuclear plant piping, ordinary plastic collapse analyses will possibly suffice.

尤其是对于核电管道的韧性材料，一般的塑料失稳分析可能足够了。

two metres of copper, plastic, etc tubing

两米铜管、 塑料管等.

reclaimed plastics drain pipe panel for road

公路用再生塑料排管板