综述了石油钻杆接头失效的十一种主要形式.Eleven mare modes of tool joint failures are summarized.那个钻杆的丝扣坏了, 换另外一根.That pipe thread is bad. Use another one instead.本文还介绍了微型钻杆测试系统压力瞬时分析方法.A systematic pressure transient analysis method for min...
...lightweight denim...轻磅牛仔面料He has on a denim shirt with a T-shirt underneath.他穿了一件牛仔衬衫,里面套了件T恤.The cable and lampshade are the material inspired by denim.有线和灯罩的物质激励牛仔.Will denim jeans ever go out of date?粗布牛仔裤会过时吗？...a...
If the warranty is limited, the terms may entitle you to a replacement or refund.如果保修有限制，根据条款你也许可以要求退换或者退款。Golden parachutes entitle them to a full year's salary if they get booted out of the company.一旦被公司解雇，“金降落伞”协...
Major producers: large trucks gearbox bearings, Steyr non - standard bearings and bearing harvesters.主要生产: 大型货车变速箱轴承 、 斯太尔 非 标轴承以及收割机轴承.Well, so much for the producers. But what of the con-sumers?好吧，关于生产商就讲这么多，那关于消费者呢？St...