英语词汇design service life怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
?设计使用年限
2.0.2 设计使用年限（Designed service life）设计人员用以作为结构耐久性设计依据并具有足够安全度或保证率的目标使用年限。

1
The safety rating of the engineering structure is grade2and its designed service life is50years.
本工程结构安全等级为二级，设计使用年限为50年。
2
The corrosion resistance of the girder internals is vitally important for designed service life of Bridges.
钢箱梁内部的腐蚀问题，对桥梁的设计使用寿命至关重要。
3
Kiaochow Bay subsea tunnel is the second self-building tunnel in China with the designed service life over 100 years.
胶州湾海底隧道是中国自行建造的第二条海底隧道，其服役寿命为100 a。

单词	design service life
释义	design service life 简明释义设计使用寿命：指产品或设备在设计时预期的正常使用年限。网络释义 1 ?设计使用年限 2.0.2 设计使用年限（Designed service life）设计人员用以作为结构耐久性设计依据并具有足够安全度或保证率的目标使用年限。双语例句 1 The safety rating of the engineering structure is grade2and its designed service life is50years. 本工程结构安全等级为二级，设计使用年限为50年。 2 The corrosion resistance of the girder internals is vitally important for designed service life of Bridges. 钢箱梁内部的腐蚀问题，对桥梁的设计使用寿命至关重要。 3 Kiaochow Bay subsea tunnel is the second self-building tunnel in China with the designed service life over 100 years. 胶州湾海底隧道是中国自行建造的第二条海底隧道，其服役寿命为100 a。
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