The tight line transportation technology of oil pipeline must rely on reliable safety and protection means.

输油管道密闭运行，必须有可靠的安全保护。

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The tight line pumping at ordinary temperature method and SCADA-system have been adopted in Korla-Shanshan oil pipeline.

库尔勒至鄯善输油管道采用了常温密闭输送工艺及SCADA系统等先进技术，是目前国内自动化水平领先的一条管道。

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Now she has to expand NATO, walk the tight line of engagement with China and persuade American taxpayers that keeping the world safe does not come cheap.

现在她必须要扩展北约组织，在与中国的抗衡中走钢丝以及说服美国纳税人维持世界安全不会只需区区数文钱。

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He and his father earlier visited the Tight Line pub near Oban and were returning to their campsite when they became separated.

BBC: Michael Pringle

And since ultrasound travels in a tight line akin to laser light, the emergent tones are audible only in a narrow, cylindrical path from source to ear.

FORBES: Now Hear This

Their determination and astute running between the wickets enabled them to set a competitive total of 220-6, then maintained a tight line and length to restrict their rivals to 205-9 in reply.

BBC: Gloucestershire embarrass Lancs