割的

In order to explode and use Lespedeza, the thesis is divided into three main parts: root system growth and development research of Lespedeze bicolor Turcz., effect of cutting frequency on root system and aboveground part biomass and effect of cutting and germinating on endogenous hormone of root system.

为了为进一步开发和利用胡枝子资源，本文做了以下研究：对二色胡枝子根系生长发育的研究、刈割频度对根系及地上生物量的影响的研究及刈割和萌蘖对根系内源激素的影响的研究。

This implies the existence of a polynomially bounded algorithm to find a shortest contractible cycle, a shortest separating cycle, and shortest cycle in an embedded graph in the projective plane and answers the open problems raised by Mohar and Thomassen in the case of projective plane embedded graph.

另一方面，通过定义嵌入图的几何对偶图及其相应的嵌入系统，得到几何对偶图中的可分离圈就对应于原图中的割；反之，若几何对偶图中的割在原图中对应于一个圈，那么该圈一定可分离。

For, whereas the school of Shammai is said to have allowed a proselyte who was circumcised on the eve of the Passover, to partake after baptism of the Passover, 1 The case supposed by the school of Shammai would, however, have been impossible, since, according to Rabbinic directions, a certain time must have elapsed between circumcision and baptism.

为，而学校的Shammai据说已允许proselyte谁是割礼的前夕，逾越节，参与洗礼后的逾越节， 1案件理应由学校的Shammai但是，已经不可能，因为根据拉比的方向，在一定时间必须相隔割礼和洗礼。

In order to get suitable binary sequences for key streams, binary generalized cyclotomic sequences of order eight on the two-prime residue class ring were considered. By means of the polynomial theory over finite fields, minimal polynomials and linear complexity of these sequences were obtained.

为了从剩余类环上的二元广义割圆序列中寻求满足需要的密钥流序列，考虑了双素数积剩余类环Z上的一类二元广义8阶割圆序列，利用有限域理论，给出了该序列在不同情形下的极小多项式，进而得到了它的线性复杂度。

But it is at the stage of theoretic research in China The expandable sand screen technology is used for sand prevention in the downhole In fact, it is a series and intermesh axes slotting and the ar rangement of the slotting make the pipe string easy to ex pandable.

它是一种适用于井下防砂的膨胀筛管技术，膨胀防砂筛管实质上是具有一系列串联的、互相交错的轴向割缝的管子，割缝的布置使管柱更易于膨胀。

The effect of harvesting height on the grass yield and quality of two varieties of Lolium multiflorum was studied and the result showed that the different harvesting height greatly affected the fresh yield, dry mater yield, quality and growth characteristics.

多花黑麦草Lolium multifolium具有很强的再生性和耐刈性，为了确定最佳的刈割利用方式，在有限的耕地中获得较高的产量和效益，采用小区试验的方法，研究了不同刈割高度对多花黑麦草特高和杰威产草量和品质的影响。

Model HL6000C harvester one rice wheat pairs of person who charges track half feed the entering type combined harvester, It have horsepowers of heavy, efficiency high, adaptable high humidity paddy field person who gather in merit, But because structure its complicated, exist many questions and drawbacks but also in the course of using actually, Through cut this text to it sets of part urge systematic analysis and calculate, find out existing problem its and put forward to among them some solution of problem, In order to improve it cut sets of quality of part, improve overall quality of harvester further.

HL6000C型收割机是一种稻麦双收履带式半喂入型联合收割机，它具有马力大、效率高、可适应高湿度稻田收割等优点，但由于其结构复杂，在实际应用过程中还存在不少问题和弊端，本文通过对其割台部分驱动系统的分析和计算，找出其存在的问题并提出对其中部分问题的解决方案，以提高其割台部分的质量，从而进一步提高收割机的总体质量。

There is no method of obtaining a velvety lawn but by repeated mowings; and there is no way of developing tenderness, evenness, sympathy, but by the passing of God's scythes.

要得到一块柔润的草地，唯一的方法就是常常割草；要得到一个温柔、和平、怜悯的心，唯一的方法就是常经神的镰刀割修。

However, as the Sun bak'd these Two, very dry and hard, I lifted them very gently up, and set them down again in two great Wicker-Baskets which I had made on purpose for them, that they might not break, and as between the Pot and the Basket there was a little room to spare, I stuff'd it full of the Rice and Barley Straw, and these two Pots being to stand always dry, I thought would hold my dry Corn, and perhaps the Meal, when the Corn was bruised.

无奈之中，只得用一把腰刀来改做；这种腰刀是我从船上的武器舱中取出来的。好在第一次收成不多，所以割起来也没多大困难。而且，我收割的方法也非常独特：只割下麦穗或稻穗，把茎干留下来。我把穗子装进自制的大筐子里搬回家，再用双手把谷粒搓下来。收获完毕后，我发现原来的半斗种子差不多打了两斗稻和两斗半多的大麦。这当然只是我估计估计罢了，因为当时手头根本就没有量具。

In addition, this thesis also simulates the movement of the mechanism by simulation method based on Pro/E software. The design error of the head of linking board in the mechanism δ_1 and the initial position error of the cutting torch δ_2 are selected and compared.

为了让操作人员更直观的了解了该机构的运行原理、机构设计和使用方法，本文还运用3DS MAX软件制作了两个演示动画：第一个动画演示了回转机构的割枪作以割嘴为固定点的定心圆锥摆动；另一个演示了整个机床切割矩形轮廓和圆形轮廓时的运动情景。

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。