查询词典 periodic

This instrument, called a Nilometer was used by the ancient Pharaohs to establish how high the periodic floods would be.

这个被称作&Nilometer&的设备，是古代法老用来猜测一定时期内洪水的可能高度。

This instrument, called a Nilometer was used by the ancient Pharaohs to establish how high the periodic floods would be.

每年洪水过后，土地上都会留下一层淤泥，这是能让庄稼茁壮成长的天然优良肥料。

This instrument, called a Nilometer was used by the ancient Pharaohs to establish how high the periodic floods would be.

用于推断丰收与否的&Nilometer&，其实就是制定税收标准的装置。

This instrument, called a Nilometer was used by the ancient Pharaohs to establish how high the periodic floods would be.

最具埃及农业特色的无疑是枣椰树。农民用它建房顶，打家具，编篮子。

Using the noncollinear quasi-phase matching technology,"clear light source" sequence of different colors at different positions can be obtained in a two-dimensional LiNbO3 nonlinear photonic crystal with ten-fold quasi-periodic superlattice.

在具有二维十重准周期超晶格结构的铌酸锂非线性光子晶体中，利用非共线准相位匹配谐频的方法，可在不同角度上获得不同颜色的&纯光源&光斑序列。

Our results show that: the number of periodic orbits of a nonintegrable systemdecreases and the system becomes more chaotic as the perturbation on the integrable part is increased.

研究表明：当体系所受的扰动增加时，体系的混沌程度就会不断增加，周期轨迹的数目也越来越少。

Through adding new state variable and using supplement functions,the problem with restriction conditions was converted into nonrestriction problem.In addition,the dynamic searching method of optimal step coefficient was developed to modify the conventional gradient method,consequently the calculation problem of the multivariable optimal periodic control was able to be resolved better.

通过增加新的状态变量和用补偿函数法，将本课题的有约束条件问题化为无约束条件问题，并提出了最优步长参数的动态搜索法来修改传统的梯度法，从而较完善地解决了多变量最优周期控制的计算问题。

B. Fetal assessment consists of daily fetal movement counts and nonstress testing and/or biophysical profiles at periodic intervals.

胎儿评估包括每天数胎动和无负荷试验和/或周期性的生物物理监测。

B. Fetal assessment consists ofdaily fetal movement counts and nonstress testing and/orbiophysical profiles at periodic intervals.

胎儿评估包括每天数胎动和无负荷试验和/或周期性的生物物理监测。

The results show that the heterostructure photonic crystal can extend remarkably the photonic bandgap compared with the periodic structure;a defect is inserted into the heterostructure photonic crystal,the nontransmission band is wider than that of the symmetric structure without heterostructures,(1H1L)_m(1H)_n(1L1H)_m.

结果表明，与周期结构相比异质结构光子晶体可以显著地拓宽光子晶体的光子带隙；在该文提出的结构中引入缺陷，与(1H1L)m(1H)n(1L1H)m光子晶体相比，产生缺陷模式光子带隙范围明显拓宽，适当调整缺陷层的数目、位置和厚度可得到多通道滤波；并研究了实际操作中随机误差带来的影响，随无序度的增大，其带宽基本不变。

It can be predicted that the design of user-friendly design will be the inevitable trend of the future and final destination, the work of designers that is: people from the extrusion and slavery are emancipated and the living environment and goods are more suitable to people. Besides, psychological part become more heather and human emotion more richer to reach harmony and the realm of "Things and oneself forget each other".

可以预言，设计人性化将是未来设计的必然趋势和最终归宿，设计师的工作即是：使人们从物的挤压和奴役中解放出来，使人的生存环境和物品更适合人性，使人的心理更加健康发展，使人类感情更加丰富，人性更加完美，真正达到人物和谐，&物我相忘&的境界。

I want to know why the contract was cancelled.

我想知道为什么取消合同。