管采用热熔对焊连接或电熔套管连接。
HDPE pipe to connect the use of hot-melt or fused welded casing connection.
但是纳管还具有其他的品质，吊起了工程师们的胃口：它们是电与热的优良导体，可以用作电线、半导体或超导体。
But nanotubes have other qualities that are whetting the appetites of engineers: they're excellent conductors of electricity and heat, and they can be used as wires, semiconductors or superconductors.
本文对电孤放电和催化剂热解碳氢气法制备的多层直形纳米碳管的倒空间及其螺旋度，采用电子衍射进行了研究。
Straight carbon nanotubes with multishells produced by arc discharge and pyrolysis of organic gases using metal particles as catalysts have been investigated by means of electron diffraction.
可靠的连接性能：PE管热熔或电熔接口的强度高于管材本体，接缝不会由于土壤移动或活载荷的作用断开。
Reliable connectivity: PE pipe hot melt or fused interface strength is higher than the pipe body, joints will not load due to soil movement or the role of living off.
可靠的连接性能：PE管热熔或电熔接口的强度高于管材本体，接缝不会由于土壤移动或活载荷的作用断开。
Reliable connectivity: PE pipe hot melt or fused interface strength is higher than the pipe body, joints will not load due to soil movement or the role of living off.
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