gum duct是什么意思

网络释义

用法例句

In order to reducing the cost,MDI-type polyurethane(PU)plastic racetrack material used in sports was manufactured,by increasing the percent of NCO and adjusting the B-component in the raw materials.

以降低成本为目的,提高了预聚体的NCO质量分数,同时对B组分中的原材料进行了选择与调整,研制了MDI型双组分聚氨酯塑胶跑道铺装材料。

Study on application of rare earth catalyst to MDI type polyurethane synthetic rubber sports track material;

稀土催化剂在MDI型聚氨酯塑胶跑道材料中的应用研究

Potential value of synthetic rubber sports track in strength training of short race

软性塑胶跑道潜在的短跑专项力量训练价值研究

Technological developments in synthetic rubber sports track were narrated in this paper,some formulations and applications including environment friendly formulations,low cost formulation,nanometre modification formulation,EPDM and crystal whisker used in sport tracks were also introduced.

介绍了聚氨酯塑胶跑道最新技术进展,对塑胶跑道的新型环保配方、低成本塑胶跑道、纳米改性塑胶跑道、晶须材料和EPDM材料等进行了综述。

It should focuses on dimension accuracy and standardized performance for the design of athletics play ground with plastic track.

塑胶跑道田径场的设计强调几何尺寸的准确性和内在性能的标准化 ,并以塑胶铺设区的结构层次与田径场内的给排水系统作为设计的重点。

Synthetic--Rubber sports track

GB/T14833-1993塑胶跑道

A Study on Influence of Soft Plastic Racetrack on Sprint Technology in Intermediate Phase;

软性塑胶跑道对短跑途中跑技术的影响研究

Towards the Quality Control of the Basic Construction of Second-mortar Gravel on Plastic Track

塑胶跑道二灰碎石基层施工质量控制

Research on Popularization and Pollution of Plastic Playground in Universities in Hangzhou;

对杭州高校塑胶跑道现状及污染问题的探索

Potential value of synthetic rubber sports track in strength training of short race

软性塑胶跑道潜在的短跑专项力量训练价值研究

Study about the Influence of Soft Plastic Racetrack on Sprint Maximum Velocity Phase and Partial Specific Strength Exercise Technology;

软性塑胶跑道对短跑途中跑及其部分专项力量训练手段技术的影响研究

THE material used for playgrounds and running tracks in schools across China may be a danger to children's health, experts say..

有关专家认为，中国很多学校建造塑胶操场和跑道时使用的材料可能威胁到孩子们的健康。

Research on Rubber Particles Reinforced Polymer Modified Cement Athletic Track

橡胶颗粒增强聚合物水泥操场跑道材料的研究

Report on the 20~(th) International Exhibition on Plastics and Rubber Industries;

第二十届中国国际塑料橡胶工业展览会专题报道

We design and manufacture the industry's most comprehensive range of injection molding equipment, including machines, molds, hot runners and robots.

我们设计和制造全行业最全面的塑胶注塑设备系列，包括机器、具、流道和机械手等。

The champion is running in lane 4.

冠军跑在第四跑道上。

She ran three circuits of the track.

她沿跑道跑了三圈。

She ran four circuits of the track.

她在跑道上跑了四圈.

The racers balloted for places by drawing straws

赛跑者抽签选择跑道。

In the race he literally "flew" round the track.

他在赛跑中简直像飞似地绕着跑道跑。

threshold light

入口界灯 -跑道的

rubber and plastics making machine

橡胶及塑料加工机械

calf-grained plastic bag

小牛皮纹理状塑胶袋