概述了管道内涂层在国内外的应用现状,详细介绍了内涂层的诸多优点和不同条件下管道内涂敷工艺的技术要点.The application status quo of internal coating gas transmission pipeline at home and abroad is described....
The insured value of the airplane was greater than its book value.该飞机的投保价值高于它的实际账面价值。He slipped and fell on an airplane gangway as the cameras rolled.在摄像时他不慎滑倒在飞机座位间的通道上。They arrived in Belgium by airplane .他们乘飞机到达比利时。...
Torrential rain and a howling tempest cut a swathe of destruction across the country.狂风暴雨横扫全国，所到之处，一片狼藉。The baby is howling.这婴儿在大声地啼哭。His mirth hoarse and ghastly, like a raven's and the sick wolf joined him, howlin...
Medullary carcinomas can be sporadic or familial.髓样癌可以是散在单发,也可以是家族性发病.Most of the smaller hornblendite bodies contain about 5 - 10 percent magnetite, with only local sporadic enrichment.在小的角闪岩体中,磁铁矿可占510%, 仅有局部的散染状富集.Sud...