These useful results provide scientific basis for the electroforming of moulds with long service time and excellent mechanical performances.

这些有益的实验结果为电铸加工使用寿命长、机械性能好的模具提供了一定的依据。

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Experimental results indicate that this system has some advantages such as small size, reliable detection ability and long service time etc.

实际运行结果表明，该系统具有体积小、检测能力强和寿命长等优点。

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Our technology and modern equipment can fully guarantee the reliable and stable quality products and long service time for meeting your specific needs.

其生产技术及全新的设备可以满足您的特定需求，能保证产品质量的稳定可靠，延长使用寿命。

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But Voice of America Persian Service has been there for a long time.

VOA: standard.2009.07.02

Similarly, eFax stopped promoting their free fax service a long time ago.

FORBES: Why Freemium Isn't Free

For a long time your service has demanded a particular kind of sacrifice.

WHITEHOUSE: President Obama Signs Repeal of Don��t Ask, Don��t Tell

The basic point is that although there are powerful arguments for awarding longer term contracts, so that the successful bidder has an incentive to spend serious money on the best kit, a healthy scepticism needs to be attached to forecasts of the health of the economy and of the relevant public service over a time period as long as three parliaments.

BBC: What derailed the Transport Department