查询词典 plastics

Some plastics, such as nylon and cellulose acetate, are formed into fibers (which are regarded by some as a separate class of polymers in spite of a considerable overlap with plastics).

某些塑料，如尼龙和醋酸纤维素，是形成纤维（即却被某些作为一个单独的一类聚合物，虽然有相当多的重叠与塑料）。

The "people-centered" philosophy runs through the "Century Plastics Machinery Plant," the whole process of development, human resources development of enterprises is fundamental, therefore, from the "century" set up to today, a large number of professionals has been working continuously Innovation for the plastics industry in providing customers with more sophisticated equipment and better service.

以人为本"的理念始终贯穿在"世纪塑料机械厂"发展的全过程，人才是企业不断发展的根本所在，因此，从"世纪"创办到今，众多的专业人才一直在努力，不断地推陈出新，为塑料行业的客户提供了更精良的设备和更优质的服务。"

The process of employing the degumming agent to remove clearcole and self-adhesive paper placed on the surface of plastics is that the degumming agent is heated to 40-60 DEG C, the plastics of which the adhesive is ready to be removed are mixed in the degumming agent for 10 minutes, enabling the contact between the adhesive and the degumming agent to achieve best degumming effect.

利用上述脱胶剂脱除塑料表面底胶和不干胶的方法，是将上述的脱胶剂加热升温到40～60℃，将待脱胶的塑料在上述的脱胶剂中搅拌10min，使其与脱胶剂完全接触达到最佳脱胶效果。

This design is "Researches to molding tools of the plastics cup product", it systematically introduced the process and the assemble and use of the whole set of mold of every components about plastics cup.

本设计为塑料水杯模具制作设计，它系统的介绍了塑料水杯模具中的各个零部件的加工工艺过程及整套模具的装配和使用。

Research Society of Degradable Plastics, China Plastics Engineering Association, Beijing 100088, China

中国塑料工程学会降解塑料研究会，北京100088

Using numerical simulation technology and method of orthogonal experiment design and single factor rotating optimization, this thesis makes a study of "lost core injection ", thus achieve the optimization of the parameters of molding process, to offer basic reference when developing production technology and mould of the plastics intake manifold. Based on the study of the status in quo and development trend of weight reduction on automobile, the application of plastics to automobile and intake manifold, then under the guidance of theory model and numerical simulation technology in the process of high polymer material, this thesis launches flowing main research work: First of all, on the basis of the three-dimensional model of the part and finite element net model, several designs of gating and running system are numerically simulated and analyzed via MPA of Moldflow.

本文在对当今汽车轻量化、零部件塑料化以及的汽车进气歧管塑料化的发展现状和发展趋势进行了研究和简要介绍，然后在高分子材料成型过程中的理论模型和数值计算方法的指导下，展开主要的研究工作：首先，在零件三维模型和有限元网格模型的基础上，使用Moldflow 的MPA模块对塑料进气歧管的多个浇注系统设计方案进行数值模拟，通过分析各个方案的充填质量、熔接线位置及数量等指标，得到了综合质量较高的4 个进料口的浇口位置及半限制型浇口大小的浇注系统。

The applications of polymer melt gear pump in plastics extrusion and microcellular plastics forming are introduced.

介绍了熔体齿轮泵在塑料挤出成型及微孔塑料加工中的应用。

Derives the formulae for calculating the distortion and stress on the acting surface of flexspline load in the drive process of the harmonic gear drive with three-wave wavegenerator;(2) analyzes and compares the performance of plastic and steel products under light load drive and calculates the probably reached limit of drive ratio for both types of flexsplines under the same load;(3) applies the harmonic gear drive with three-wave wavegenerator to the small-sized multiple-revolution electric device of valves by taking into consideration of the low limit of the drive ratio for the harmonic gear drive with three-wave wavegenerator made of plastics, improves the design on the main drive mechanism of the traditional small-sized multiple-revolution electric device of valves, and validates through examples the feasibility for the harmonic gear drive with three-wave wavegenerator made of plastics to be applied to the small-sized multiple-revolution electric device of valves. Finally the author performs calculations on the two types of the flexsplines of the harmonic gear with three-wave wavegenerator by using the finite element method and analyzes the causes for the errors.

本文根据三波谐波齿轮传动的运动变形特点，采用弹性薄壳的力矩理论，推导了三波谐波齿轮传动柔轮载荷作用面上的变形及应力计算公式；分析比较了轻载传动情况下塑料和钢材的性能，计算了塑料制谐波柔轮和钢制谐波柔轮在相同载荷情况下可能达到的传动比极限；对塑料制及钢制三波谐波齿轮柔轮进行了有限元计算，分析了产生误差的原因；针对三波塑料谐波齿轮传动比极限低的特点，将之运用于小转矩多回转阀门电动装置中，对传统的小型多回转阀门电动装置的主传动机构进行了改良设计，并通过实例验证了三波塑料谐波齿轮传动在小转矩多回转阀门电动装置中应用的可行性。

The show "provides business opportunities, promotes the IMPI services as training personnel in plastics to meet the priority needs of the plastics industry."

展"提供的商业机会，促进IMPI服务人员进行培训，以满足塑料的优先需要塑料行业。"

After processing, some plastics cannot be returned to the plastic or moldable state; they are thermosetting plastics or thermosets.

经过处理，有些塑料不能返回到塑料或可塑性状态，它们是热固性塑料或热固性塑料。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。