As may be gathered from this, the bulk of plastic articles is made by the process known as moulding . 由此可以得出结论，大多数塑料制品都是通过叫做“模制”的工艺制造出来的。
In this form the traveling-wave nature of the individual modes and their explicit time dependence are brought out . 这种形式的表达式显示出各个模的行波特性及它们显含时间的关系。
The linear scaling and the reynolds number represent classical, aerodynamic similitude requirements applicable to law-speed flight . 线性缩尺和雷诺数是低速飞行时经典的气动力模似要求。
Inside the film, the field varies sinusoidally and the entire surface-wave mode propagates alone the horizontal z direction . 在薄膜内，场按正弦函数变化，整个表面波模沿水平Z方向传播。
The shape of the die decides the shape of the extruded plastic-a fibre, perhaps, for use in nylon thread, or a tube . 模口的形状决定了挤出塑料产品的型状，如制尼龙绳用的纤维丝或塑料管。
However, apart from the technological difficulties of preparation, casting resins affords a further wide field of application . 然而，除了制备工艺的困难外，模浇树脂有更广泛的应用范围。
Different grades of crystal polystyrene molding pellets range from 150, 000 to 350, 000 weight average molecular weight . 不同牌号的结晶聚苯乙烯模塑粒料平均分子量范围从150，000-350，000。
