Examples of using Only when necessary in English and their translations into Chinese
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Political
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Ecclesiastic
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Programming
Another important property of these two operators is that the part to their right is evaluated only when necessary.
这两个运营商的另一个重要特性是只有在必要时才对其右侧的表达进行评估。Israel says troops opened fire only when necessary against those throwing stones and firebombs or rolling burning tyres at soldiers.
以色列军方说，只有在必要的时候才对那些向士兵扔石头、燃烧弹或滚动足球竞彩轮胎的人开火。Manage the power reserves of the city, using energy only when necessary to avoid the dangers of being stuck in the dark.
管理城市的电力储备，只有在必要时才使用能源，以避免被困在黑暗中的危险。Both females and males are generally quiet and bark only when necessary, though early training in this regard is essential.
无论雌雄两性，波士顿㹴一般都会很安静，只有在必要时才会吠叫，所以在这方面的早期训练是不可或缺的。Pesticides are used only when necessary and in combination with other methods for more effective and long-term control.
在IPM中，只有在需要时才使用杀虫剂，并与其他更有效、更长期的控制方法结合使用。Many SMBs try to spend money only when necessary, which can result in loss of data, work, or worse.
很多中小企业只在必要时才花钱，这可能会导致数据丢失或者更严重的后果。Manage the power reserves of the city, using energy only when necessary to avoid the dangers of being stranded in the dark.
管理城市的电力储备，只有在必要时才使用能源，以避免被困在黑暗中的危险。It runs the code only when necessary, and it automatically scales from a few requests per day to thousands per second.
它只在需要时才执行您的代码并自动缩放，从每天几个请求到每秒数千个请求。Please protect your personal information, provide it to others only when necessary, and take responsibility for the consequences of this action.
请您妥善保护自己的个人信息，仅在必要的情形下向他人提供，并且对此行为产生的后果承担责任。The Israeli military says it opened fire only when necessary against those throwing stones and firebombs or rolling tires at soldiers.
以色列军方说，只有在必要的时候才对那些向士兵扔石头、燃烧弹或滚动足球竞彩轮胎的人开火。Cleaning will wear out the paper feed roller, so perform this only when necessary.
清洁会磨损进纸滚轴，因此仅在必要时执行清洁。The Israeli military says it opened fire only when necessary against those throwing stones and fire bombs or rolling tyres at soldiers.
以色列军方说，只有在必要的时候才对那些向士兵扔石头、燃烧弹或滚动足球竞彩轮胎的人开火。It is recommended to lock DDIC user ID in production and unlock only when necessary.
建议在生产环境中锁定DDIC用户身份，只有在必要时才解锁。The idea is to share an office, and in particular, to use this office only when necessary.
也就是说共用一间办公室，尤其是只在必要的时候才用它。We put a lot of effort into designing gaze-based interactions that were comfortable to use and required interacting with the touchpad only when necessary.
我们投入了大量精力来设计基于注视的交互，使用户用起来舒服，而且只有在必要时才需要与触摸板进行交互。The Commission should limit itself to secondary rules and discuss primary ones only when necessary.
委员会应只讨论次要规则,在必要时才讨论主要规则。They live in the tropical rainforests of South America and spend most of their time hanging from tree branches, moving only when necessary.
它们生活在南美洲的热带雨林中，大部分时间都挂在树枝上，只有在必要的时候才会移动。The Committee recommends that asylum-seekers be detained only when necessary, for a limited period of time, under other regulations than the Prisons Act and in accordance with UNHCR guidelines.
委员会建议只有在必要时才按照《监狱法》之外的其他条例，且根据难民署的指导原则，对寻求庇护者实行有时限的拘留。President Bush said the American system of free enterprise rests on the idea"that the federal government should interfere in the marketplace only when necessary.".
布什就此表示：“我们的自由企业制度建立在这样的信念之上，即联邦政府只有在必要时才对市场进行干预。Optimization only when necessary.
仅当）如果需要时则优化。
