Plasticore with its steel core adds strength and the plastic sheath adds to the cable body and corrosion protection...
塑封软轴的钢芯可增强软轴的强度，而在软轴外加的塑封外层可加强抗腐蚀能力。
Introduced the principle of design and the main performance of railway links up grounding wire with alloy sheath and railway signal links up grounding wire with conductive plastic sheath.
介绍了合金护套铁路贯通地线与导电塑料护套铁路贯通地线的设计原理及主要性能。
Each is a transparent sheath of plastic 17-metres long, mostly underwater, held in place by a floating collar.
每个都是17米长的塑胶套子，大部分淹没于水下，由一个浮动的环状装置固定住。
Plastic cement solves cracking problem of cement sheath successfully. With high strength fiber added in, not only the strength, but also the flexibility is increased.
塑性水泥可以很好地解决水泥环的脆裂问题，它通过掺入高强度纤维，不仅可增加水泥石的强度，而且可改变水泥石的弹性。
Plastic cement solves cracking problem of cement sheath successfully. With high strength fiber added in, not only the strength, but also the flexibility is increased.
塑性水泥可以很好地解决水泥环的脆裂问题，它通过掺入高强度纤维，不仅可增加水泥石的强度，而且可改变水泥石的弹性。
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