以下为句子列表：
英文: A bit of an exaggeration, perhaps, but the point was that even in the theoretically deterministic world of Newtonian mechanics, only a small amount of complexity is needed to make practical prediction well nigh impossible.
中文: 这也许有点夸张，但关键是即使在牛顿力学的理论决定学界，仅仅是少量的复杂因素也会给实际预测带来不确定性。
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英文: Abstract: Temporal properties of the second-ordre process with a Chirped incident pulse are theoretically calculated.The chirp influences the irradiance and the pulse shape of the second harmonic wave with large phase mismatch.The phase distortion of all
中文: 文摘:讨论了在大相位失谐下,基波为频率啁啾脉冲的二次谐波产生过程,结果表明选取合适的啁啾参量可以使二次谐波的光强提高,但同时会使其波形和相位发生变化.三波相位的畸变主要取决于入射的基波啁啾脉冲,而与相位匹配的失谐量关系不大.
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英文: Abstract: This paper analyzes theoretically the effect of the reversed cone angle and length of the plug on restraint and elimination to the distortion of the internal spiral ribs,and put forth the design methods of the plug in drawing rifled tube.
中文: 文摘:从理论上分析了芯棒倒锥角和芯棒长度对内螺旋凸筋形状畸变的抑制和消除作用，提出了采用倒锥形等螺距芯棒拉拔内螺纹管时芯棒几何参数的设计方法。
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英文: Abstract: We have studied theoretically a beat effect in a four-level system due to fifth-order optical polarization,and considered the cases that the pump beams have either narrowband or broadband linewidth.We have found that the accuracy for the energy-
中文: 文摘:研究了四能级系统中基于五阶极化的拍频效应，考虑了抽运光束为窄带线宽或宽带线宽的情形.发现其对能级分裂的测量精度决定于光学跃迁的均匀增宽.也就是说，这种技术在测量与基态是偶极禁戒跃迁的两激发态之间的能级分裂时，可得到消除多普勒增宽的精度.
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英文: According to different well conditions and problem property, it proposes three methods including triple phase pressure-out, two phase pressure-out and single phase pressure-out, and infers theoretically the working well pumps, pumping rod break off and le
中文: 根据油井条件和问题性质的不同，提出了三相憋压、两相憋压、单相憋压3种方式，并对好泵正常工作、抽油杆断脱、油管漏失等工况进行了理论推导，分析了该方法的优越性。
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