The probe choices for ultrasonic crack detection of welding line of light sheet are discussed from two aspects of theory and practice.

从理论和实践两方面探讨了薄板焊缝超声波探伤探头的选择方法。

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This is achieved through the use of glass, which creates a flexible, almost graphic line of light and shadow that typifies the entire facade of this school.

设计通过使用玻璃实现，创造了一个灵活的、几乎绘画般的灯光线条和影像为特点的学校立面。

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Light-line is one of the companies that will most benefit if new long-distance fiber-optic telecommunications networks are constructed.

如果建设新的长途光纤通信网络，Light-line 将是最大的受益公司之一。

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He said he could see the flash of light from Confederate guns along a line a kilometer long.

VOA: special.2009.12.17

More modern versions of the tool add in a laser beam projector, which allows builders to level out the device and "draw" a long line of light across a wall, indicating an exactly level surface.

FORBES: No. 18 The Level

To counter this, Intel may be betting on ultrabooks, a line of notebooks that are light, slim and elegant.

FORBES: Intel Turns To Ultrabooks As Tablet Defense

When the sun goes down, crossing the line between the City of Light and the City of Darkness is eerie, almost post-apocalyptic: moving within minutes from the bright lights of Times Square to the narrow unlit streets of the Financial District with the looming outlines of skyscrapers towering overhead.

BBC: Storm Sandy: New York's dark and bright sides