Ultrasonic inspection technology for the narrow section of a weld in low-pressure rotor of steam turbine is studied.

研究汽轮机低压转子焊缝狭窄部位超声波探伤工艺。

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Sometimes it comes up against a narrow section flanked by high mountains and steep cliffs, winding through a course with many a perilous twist and turn.

有时流到很逼狭的境界，两岸丛山迭岭，绝壁断崖，江河流于其间，回环曲折，极其险峻。

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Sometimes it comes up against a narrow section flanked by high mountains and steep cliffs, winding through a course with many a perilous twist and turn.

有时流到很逼狭的境界，两岸丛山叠岭，绝壁断崖，江河流于其间，曲折回环，极其险峻。民族生命的进展，其经历亦复如是。

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Local residents who opposed the plan also said the proposed access route to the school - via the unadopted section of nearby Marlborough Lane - was too narrow for traffic and potentially dangerous.

BBC: Artist's impression of school

High above the Arno River, Poppi Alta is the upper section of the town of Poppi, and is crowned by the narrow, 13th-century Castello dei Conti Guidi.

BBC: Mini guide to Tuscany��s hill towns

The airplane is a specially configured narrow body Boeing 757 ( click here for seat map) with a large business class section.

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