必要的例句大全

Where necessary, an electrical indicator may be used to determine whether contact is made with live parts.

如果有必要，就用一个带电显示仪来测出它是否与带电部件接触。

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Draw on the laces, add in white light spots where necessary.

画上花纹，再在必要的部位点上白光点。

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Along with the development of nuclear power technology in china, it is necessary to develop the fast breeder reactor ( fast reactor) through own efforts.

随着我国核电技术的发展，自主研制钠冷快中子增殖堆十分必要。

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For a linear bounded operator in finite dimensional Hilbert space, we first introduce the definition of exactly positive and give a sufficient and necessary condition by the way of space decomposition of the operator;

对有限维Hilbert空间的线性算子，引入了恰好正的概念，并利用算子的空间分解，得到了其存在惟一正逼近的充分必要条件；

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Theorem 1 and are equivalent infinitesimals if and only if. Theorem 2 The product of a bounded function and an infinitesimal is an infinitesimal.

定理1与是等阶无穷小的充分必要条件为。

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For ensuring the mining production to be economical, continuous and in a state of equilibrium, one of the necessary steps to be taken is to account, determine, and balance the workable ore reserves.

各级矿量的计算与确定以及其间的平衡是保证矿山经济合理地持续、均衡生产的必要条件之一。

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Through the comprehensive technical level analysis of China plate rolling, pipe making and pipe processing, it points out the possibility and necessity of establishment of ERW casing production line in China.

通过对我国近年来卷板轧制、管材制造及管加工等技术水平综合分析，认为，在我国建造ERW石油套管生产线是必要的、可行的。

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The free trade area would be a threatening alternative to the non-Apec nations – the European Union, India and Brazil – that are refusing to make the concessions necessary to close the round.

自由贸易区这一替代方案，可能对非APEC成员国（欧盟、印度和巴西）构成威胁&这些国家目前拒绝作出必要的让步，以完成多哈回合谈判。

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The vehicles navigation localization belongs to a kind of dynamic system, bringing out with series of data along time passage, therefore, seeking one method to improve processing result to the matched data dynamic error, heighten matching quality has the necessity very much.

车辆导航定位属于一种动态系统，随时间的推移产生时间序列数据，因此，寻求一种能够对匹配数据动态误差具有较好处理效果、能够提高匹配质量的方法是很有必要的。

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I helped him save so I felt that I was holding onto the ring for collateral, she said.

我帮助了他存钱，所以我觉得有必要保留戒指作为抵偿，她说。

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If desired, set breakpoints in your data flow by right-clicking on a connection between operators in your data flow and clicking Toggle Breakpoint.

必要时，在数据流中设置断点，方法是在数据流中操作符之间的连接上单击右键，然后单击Toggle Breakpoint。

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Necessity of Building Permeable Breakwater in Hai ′ an New Port

海安新港建设透空式防波堤的必要性

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Theorem 1 and are equivalent infinitesimals if and only if.

定理1与是等阶无穷小的充分必要条件为.

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Sample analysis shall be conducted, if necessary, in areas listed above.

必要时, 可对上述第一至八款所列区域进行取样分析.

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If need be, I can come early tomorrow.

如果必要的话, 我明天可早来.

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I will help you if need be.

有必要的话,我一定会帮助你.

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If need be, I'll go and have a look.

如果必要, 我就去看一看.

词典精选例句

The measurement of pressure broadening coefficient of SO_2 in laboratory can provide necessary data for concentration monitor in interstellar and Earth's atmosphere.

实验室中对其压致展宽系数的测量能直接为天体间和地球大气层中SO2浓度的检测提供必要的数据。

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The requirement and efficiency of using low density bridging loss circulation material and modified directional well configuration to leakage resistance in buried hill formation were discussed.

探讨了在潜山地层定向井中采用低密度桥接堵漏剂和改进的井身结构处理井漏的必要性和有效性。

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" We will make bridging proposals at such time as we deem necessary and appropriate," said the envoy.

我们将在这样的情况下提出衔接性建议，并且我们认为是必要和适当的。

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