The old fixed-line telephone has been replaced by mobile phones, Short Message Service (SMS), e-mail and instant messaging (IM).

老式的固定电话早已被手机、短信息、电子邮件和即使消息（IM）所取代。

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Normal production of the electrolytic tinning line at Baoshan Iron & Steel Co. Ltd. was restrained to some extent by short service life of the reflow conduct roll and frequent rush repairs.

宝钢电镀锡机组软熔导电辊使用寿命短，抢修频繁，一定程度上制约了机组的正常生产。

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The utility model resolves problems that filter bags of traditional flat bag dust removers are high in load, short in service life and poor in on-line dust removal.

本实用新型解决了传统扁袋除尘器滤袋的负荷大，使用寿命不长及在线清灰不好的问题。

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Restoring service on the Waterbury line on the Wednesday after the storm "was nothing short of miraculous given the conditions we faced, " he said.

WSJ: Conn. caught short on rail line down in Feb. storm