随后德夫为维护奴隶制写了一份有力的辩护，这份辩护成为支持所有后亲奴主义作家的开创性著作。
Dew wrote a forceful defense of slavery in the wake of this, which became kind of a seminal text for all future pro-slavery writers.
而且，就算代码维护性得到了解决，缺陷复发的风险也得到了增加，因为不适当维护后的代码变得更加的脆弱。
Further, risk of regression defects increases when code maintainability is compromised, because code that is not properly maintained is inherently more brittle.
中国石油A 1项目(即：勘探与生产技术数据管理系统)进入生产性运行阶段后，系统的维护管理就显得尤其重要了。
Petrochina A1 project turn into the empress of the movement stage of production, the maintenance management of system seemed to be particularly important.
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