Still dark green near its stem , with its serrated edges tinted with the yellow of dissolution and decay , it hung bravely from the branch some twenty feet above the ground 靠近茎部仍然是深绿色，可是锯齿形的叶子边缘已经枯萎发黄，它傲然挂在一根离地二十多英尺的藤枝上。
Methods put the blattela germanica ' s imagoes arid larvae which attach to the zigzag slips into one side of the vat of separate apparatus , together with the slips , and in another side the vat , put food and water to make a temptation 方法将附着于锯齿形纸片上的德国小蠊成、幼虫连同纸片一起放入分离器一侧的缸中，另一侧缸中放入食物和水进行引诱。
In chapter 5 , using coordinate graphs , the influences of rectangular screw , trapezoidal screw and serrate screw on the generated axial thrust force , minimal mucus film thickness , load capacity of hydrodynamic pressure and circumferential friction are compared and analyzed 第五章，通过坐标图对比分析了微型机器人在矩形螺纹、梯形螺纹、锯齿形螺纹下，各螺纹参数对轴向摩擦牵引力、最小粘液膜厚度、粘液膜承载能力、周向摩擦阻力的影响。
In chapter 4 , the modified reynolds equation is solved numerically with the finite different method , and the generated axial thrust force , minimal mucus film thickness , load capacity of hydrodynamic pressure and circumferential friction under the serrate screw are obtained . at last , using numeral methods and coordinate graphs , the influences of serrate screw parameters on the generated axial thrust force , minimal mucus film thickness , load capacity of hydrodynamic pressure and circumferential friction are studied and analyzed 第四章，首先求出锯齿形螺纹下数值计算所需的有限差分方程，再推出了锯齿形螺纹作用下轴向摩擦牵引力、粘液膜厚度、粘液膜承载能力、周向摩擦阻力无量纲表达式，最后用数值计算方法求解，通过坐标图分析了锯齿形螺纹参数对轴向摩擦牵引力、最小粘液膜厚度、粘液膜承载能力、周向摩擦阻力的影响。
An aeroengine power - turbine 1 ( superscript st ) stage rotor shrouded blade is taken for an example in the article , tightness of shroud and contact force 、 blade body stress under working state and assembly state are calculated by finite element contact analysis method , influence of working load ( temperature and centrifugal force ) is mainly analyzed 摘要以航空发动机动力涡轮一级带锯齿形叶冠的转子叶片为例，用有限元接触分析方法对装配和工作状态下的叶冠紧度和叶冠接触力、叶身应力进行了计算和分析，着重考察了工作载荷（温度和离心力）对叶冠接触力的影响。
And relying on this , our laboratory proposes a new cladding method . by means of large dynamic explicit fem code ansys / ls - dyna , the numerical simulation was carried out in bimetal forming process . during the simulation of the forming process , the large deformation of the strip should be considered , as well as geometrical and material nonlinear , the contact between the roller and the strip , the contact between two metal sheets and the load . as for these problems , we can use node to surface contact and relative parameters , biso model is introduced , the load is applied as array 本文采用ansys / ls - dyna计算程序为分析工具，对锯齿形双金属复合板成型过程进行计算机数值模拟，在对轧制过程模拟时，针对轧件变形的几何非线性和材料非线性特点、轧辊与轧件间的接触、轧件间的接触以及模型的加载等问题，给出了在ansys / ls - dyna中相应的解决方法：应用nodetosurface接触方式，设定相应参数，选用双线性等向硬化模型，载荷作为array施加在刚体质心。
It was shown that when the soil pressure on the stepped rsrw was relatively small , its distribution form was zigzag , and would be affected evidently by unloading function of the step ; the potential fracture surface of the stepped rsrw was obviously different from the 0 . 3h fracture surface proposed by the usual hypothesis , and would change with height - width ratio of the wall ; finally , its deformation characteristics were different from the vertical rsrw with single step 测试表明：台阶式加筋土挡墙的墙后土压力较小，呈锯齿形分布，明显受台阶卸载的影响；潜在破裂面与0 . 3h破裂面假定有较大差异，并随挡墙的高宽比变化而变化；变形特征不同于单级直立式挡墙。
