The cold cracking sensibility of high tensile pipeline-steel was studied by Ygroove cracking test using seven kinds of high cellulose electrode of vertical down position welding.

采用七种高纤维素型立向下电焊条，通过斜y坡口裂纹实验，对高强管线钢的冷裂敏感性进行实验研究。

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This article mainly introduces the application of vertical down welds technique and operation technology in the course of welders' training and in the site of natural gas pipeline.

主要介绍了手工下向焊工艺及操作技术在焊工培训过程和天然气输气管道施工现场的应用。

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Recent expeditions have taken ice samples from green icebergs and ice cores—vertical, cylindrical ice samples reaching down to great depths—from the glacial ice shelves along the Antarctic continent.

近代的探险队已经从绿色冰山和冰核中带回了一些冰块样本，这些样本呈垂直的圆柱状，是沿着南极洲大陆的冰川冰架从极深的位置中取出的。

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The sense of going back and forth, no one of us on top, not correspondent in a vertical way, how things going down there.

这种来来回回的感觉，没有人是在高处，也没人在低处。

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The difference is that the vertical engine drills down and down into the data and provides an ordered experience: say, on travel, or certain kinds of shopping.

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But with his own plane in a near-vertical, nose-down dive, the pilot and his crew had little time to think about the fate of the Chinese pilot.

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They saw the growing importance of digital imaging, but in their linear analysis of the digital threat, they concluded it was decades away from becoming mainstream so they doubled down on vertical integration into film processing while setting up a small ancillary digital imaging group to develop and sell digital cameras.

FORBES: A ��digital apple�� a day keeps the doctor away.