only if的例句大全

Specially, when k ≥ 2 and the generating spaces are spacelike or timelike, they are totally geodesic if and only if they are totally umbilical.

特别，若M的生成空间是类空的或类时的，则当k≥2时，M全测地与全脐等价。

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One group was given a button that would shut off the noise and was told to feel free to use it but only if the noise became too great to bear.

其中一组是一个按钮，将关闭的噪音和被告知随时使用它，但只有在成为噪音过大负担。

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If the minor part is STATUS, then announce the result, but only if the wake state is TRUE.

如果minor部分是STATUS，那么宣布结果，但是只有在清醒状态是TRUE时才这么做。

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The results demonstrate that climate prediction can be made only if the time average is taken.

结果表明气候预测的对象必须是要素的时间平均场。

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It is shown that, for a given open factor map between minimal dynamical systems, the factor map is positively equicontinuous if and only if each open cover has a bounded relative complexity function.

我们证明了：对于极小动力系统间的开因子映射，它为正向等度连续扩充当且仅当每个开覆盖具有有界的相对复杂性函数。

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The add command adds a new key/ value pair to the cache only if the key does not already exist in the cache.

仅当缓存中不存在键时，add命令才会向缓存中添加一个键值对。

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The provision of compensation should be resorted to only if the immediate withdrawal of the measure is impracticable and as a temporary measure pending the withdrawal of the measure which is inconsistent with a covered agreement.

提供补偿的办法只能在立即撤销措施不可行时方可采取，且应作为在撤销与适用协定不一致的措施前采取的临时措施。

provided by jukuu

However, we can achieve meaning only if we have made a commitment to something larger than our own little egos, whether to loved ones, to fellow humans, to work, or to some moral concept ．

然而只有对比自我更大的东西作出承诺，比如爱人、人类同胞、工作或某种道德观念，才能实现意义。

高考真题- 2019 天津 阅读D

A threshold operation in which each operand is 0 or 1; output is 1 if and only if more than half the operands have the value 1.

每个操作数只能取或的一种阈值操作；当且仅当超过一半的操作数取值为时结果值为。

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Only if you study hard can you pass the test.

你只有努力学习，才能通过考试。

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Use the timer control that is located under the Windows Forms tab only if the target is a Windows Forms designer.

仅当目标是Windows窗体设计器时才使用Windows窗体页上的定时器控件。

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The main result is that a space X is a hereditable δθ-refinable space if and only if every scattered partition of X has a δθ-refinable sequence of open expansions;

主要结论有：X是遗传δθ可加空间当且仅当每一个散射分解有一个开的δθ膨胀序列；

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In this paper, we mainly study the equicontinuous and scattering properties of the continuous semi-flow on a compact metric space, and get the results as follows:( 1) the complexity function defined by spanning set is bounded if and only if the system is equicontinuous;

本文主要研究了紧致度量空间上连续半流的等度连续性及扩散性的特征。证明了如下结论：（1）用生成集定义的复杂性函数的有界性与其等度连续性是等价的；

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The replace command replaces a key/ value pair in the cache only if that key already exists.

仅当键已经存在时，replace命令才会替换缓存中的键。

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In EU, technical contribution is concentrated in the censorship of creativity. An invention is regarded to be inventive only if its technical section is non-obvious.

欧盟对于创造性审查强调技术贡献，只有发明技术部分是非显而易见的，发明才视为具有创造性。

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You must also make sure to ignore the characters only if they appear at the first of the string.

还要保证只有出现在字符串开始位置的字符才能忽略。

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To determine whether any sockets are ready, the caller must test the length of all three lists; no socket is ready only if all three lists have zero length.

为了判断是否有可用的socket，调用者必须要对方法参数中的三个列表各自的长度进行测试；如果三个列表长度都是零，那么就是没有可用的socket。

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Let ss and ss have AK property, then ss ( E) is very rotund if and only if ss and E are very rotund.

设ss和ss具有AK性质，则ss（E）是非常凸的当且仅当ss和E是非常凸的。

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Dennis Hastert, the outgoing Speaker, brought bills to the floor for a vote only if they had the support of a majority of Republicans.

即将离职的众议院议长丹尼斯·哈斯特德提出的各项法案都只有得到共和党大多数支持才能通过。

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It will flag errors only if there is something in the source file that will affect the AST Tree integrity.

只有当源文件中有一些代码影响到AST树的完整性时才会标记错误。

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