查询词典 semi-infinite

In the sand dune area fixed in 1956, the artificial vegetation evolved from the artificial system mainly composed by Hedysarum scoparium+Caragana korshinskii+Artemisia Ordosica to the semi-artificial and semi-natural system of Artemisia Ordosica＋herb group＋cryptogam group.

在1956年固沙区，原来的花棒+柠条+油蒿为主的人工系统向油蒿+雾冰藜+小画眉草+隐花植物为主的半人工半天然系统的演变。

It has also been argued that the circle can be further divided by the numbers 7 producing the septile group of aspects, 8 a semi-square, 9 a novile, 10 a decile and 12 the semi-sextile.

同时也争论过可否分成7等分，形成7分的相位，8等分，9等分，10等分和12等分。

This paper provide some results regarding upper semi continuity as well as lower semi continuity of cone efficient,and weakly cone efficient solution s in vector optimization with decision cone is perturbed.

研究了当控制锥受扰动时，具有集值映射向量优化问题的锥有效解和锥弱有效解的上、下半连续

And the semi-lethal temperature of the plant tissues was gotten according to Logistic equation. The result shows that these cultivars' semi-lethal temperatures distribute from -2.91 to -5.48℃. With the application of geography information system, the temperature suitable ecotopes in China of Bougainvillea were established by use of -3℃, the general lethal temperature, as the determinator.

对我国广泛栽培的21个三角梅品种进行了模拟低温电导率测定，确定低温致死范围在-2.91℃～-5.48℃之间；以三角梅品种普遍致死温度-3℃为依据，采用地理信息系统进行了三角梅在我国的温度适宜区划。

A semi-analytical and semi-empirical method is used to formulate a displacement solution for the circular disc with a pair of flattened areas under diametral compression.

摘要用半解析半经验的方法推出圆盘对径压缩的一个位移解，该公式可以估算力作用点有微小平台时直径的压缩位移。

Then the finite element software ANSYS is used to simulate the orthotropic flattened Brazilian disc specimen subjected to diametrical compression, the accuracy of the approximate formula of compression displacement is checked. The formula is further modified with a semi-empirical and semi-analytical approach, and it is shown to have better accuracy than the original formula covering the whole range of orthotropic anisotropic index of rock, the error is less than 6%.

用有限元分析软件ANSYS模拟正交异性岩石的巴西圆盘试样的对径压缩实验；利用有限元分析结果对正交异性平台位移压缩公式进行精度检验，并用半经验半解析的方法，对该公式进行局部的修改，修改后的公式在岩石材料的正交异性指数的整个范围的总体评价上，误差小于6%，具有更好的计算精度。

Therefore, the following works was conducted: 1 Setting up different types combination failure model of ice sheet interaction with semi-breakwater, and considering different actual conditions of crushing, bending and bucking failure in the process of ice pileup when ice sheet acts on the semi-breakwater; 2 Applying analysis of non-continuous transmutation for the numerical simulation. This method is a new numerical analysis method of simulating mechanics response of dispersoid, it has a broad application prospect for the simulative questions of ice sheet moving, deforming, breaking and circumvolving after ice sheet occur pileup.

为此，具体进行： 1 建立冰排作用于半圆堤时的不同破坏类型的组合破坏模式，能够考虑到半圆型防波堤前海冰堆积过程中，由于水位的变化和堤前冰块堆积到一定程度在低水位时触底，冰排作用于半圆堤时可能会发生弯曲、挤压、压曲等不同类型的破坏的实际情形。

Chapter 6, consider a coupled generalized KdV-Burgers equation. In section 6.2, we study the initial-boundary value problem in the semi-unbounded domain, the existence of global solutions and global attractors is proved by means of a uniform priori estimate for time. In section 6.3, the Cauchy problem by using the weighted space, the existence of the global attractors for a coupled generalized KdV-Burgers in an semi-unbounded domain is proved.

第六章，考虑了一类广义耦合的KdV-Burgers方程，在第二节中讨论了半无界区域上的初边值问题，证明了整体光滑解和整体吸引子的存在性；在第三节中讨论了Cauchy问题，利用加权函数和加权空间上的插值8不等式，证明了半无界区域上整体吸引子的存在性。

Sp. tritici of the F1 plants were tested at the seedling and adult stages. The results indicated that dominant and semi-dominant genes were responsible for powdery mildew resistance at the seedling stage, while dominant, semi-dominant and recessive genes were found controlling the powdery mildew resistance at the adult plants. After testing the Pm30 linked SSR marker Xgwml59 on the 40 F1 hybrids between wild emmer and common wheat, it was found that the Pm30 linked Xgwm159 loci could be detected at 8 F1 hybrids, indicating the 8 wild emmers might also carry the Pm30 gene.

对F_1植株的苗期和成株期抗性鉴定结果表明，在这些野生二粒小麦材料中，苗期抗性由显性和部分显性基因控制，而成株期抗性则由显性、部分显性和隐性基因控制。40份F_1代材料经Pm30基因连锁的SSR标记Xgwm159的测定，有8份材料可能含有Pm30基因。

Then, had determined the essential working procedure main craft parameter, calculates the semi finished materials size, and extracts various working procedures according to the semi finished materials size to crowd the pressure, again acts according to crowds the pressure determination equipment type and the tonnage.

然后，确定了基本工序的主要的工艺参数，计算出毛坯尺寸，并根据毛坯尺寸求出各工序的挤压力，再根据挤压力确定设备类型及吨位。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。