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Firstly, The sufficient con-ditions of the existence and uniquity of the positive equlibria by applying functional derivative isobtained; Secondly, the global attractability of the positive equlibria is investigated by charateristicroots theory and oscillation theory; Thirdly, regarding the delay as a parameter, conditions of theexistence of Hopf bifurcation and the peridic solution, furthermore, the form of the approximateperidic solution are obtained; Finally, Some specific examples are given and the solution diagrameappears by Matlab.

首先利用导数性质，得到了该模型正平衡态存在惟一性的充分条件；其次，利用特征值和振动性理论得到了该模型正平衡态全局渐近稳定性充分条件；然后，应用Hopf分支理论证明了该模型Hopf分支及近似分支周期解的存在性，并给出了周期解的近似表达式；最后，借助于MATLAB数学软件，举例并绘出了模型数值解的拟合图象，验证了文中定理条件的可行性。

The rates of reaction of functional fibers with the Au 2+ in the pure aurum solution and in the industrial wastewater-contained aurum were respectively measured at the different solution flow rates in a fluidized bed with 1200mm height and 40mm diameter and compared with the results at the static solution conditions.

在一总高1200mm ，直径40mm 的流化床装置上，分别测定了不同流速下功能纤维VACF与纯金溶液和不同浓度含金工业废水中金的反应速率，并与静态试验结果进行了比较。

One of the single soliton solutions has the kink-antikink structure and this solution reduces to the kink-like solution and the bell-like solution under different limitation.

在不同的极限情况下，该解分别退化为mKdV方程的扭结状或钟状孤波解。

Based on linear bending theory of thin elastic plate and fundamental solution constructed with the general solution principle of biharmonic equation, a meshless method was developed for establishing a computational format of numerical solution of thin plate bending.

基于弹性薄板的线性弯曲理论和重调和方程的一般解理论构造的基本解，建立无网格法求解薄板弯曲问题的数值计算格式。

Through research, we find that the non-uniform dispersion of butyraldehyde in PVA solution is the main reason of PVB agglomeration. Adding butyraldehyde to the PVA solution at the temperature of 40-60℃can ensure the uniform dispersion of butaraldehyde in PVA solution.

通过改变工艺条件，在40-60℃的条件下，将正丁醛加入PVA溶液中，可保证正丁醛分散均匀，降至适当温度后，再滴加盐酸，这样在不加任何乳化剂的条件下也得到了粉末状的PVB产品。

However,authors still do not find the relevant references on convergence and symmetric problems of the semi-analytical solution.Based on the semi-analytical solution for Hamilton canonical equation theory,the formulations of the clamp and simply supported and symmetric boundary conditions on the Hamiltonian element are derived by the variational principle.Several numerical examples show that with increase of meshes,the convergence rate of the semi-analytical solution is faster than the convergent rate of traditional finite element method based on displacement.

①在厚度上没有任何位移和应力模式的假设，由于传递矩阵方法的引入，从理论上讲，不受板壳厚度或层合板壳层数的限制；②采用弹性力学的Hamilton正则方程半解析法，可以克服边界的局部化效应[8]；③由于在平面内或圆柱壳的曲面内采用了有限元法，所以一般的板壳问题不受结构侧面边界条件的限制，在复杂工程板壳问题上具有广泛的应用领域。

The first part consists of three experiments:(1) The rings were incubated in KH, 20, 50 mmol/L 〓 for 1 house, relaxation in response to the EDHF stimuli A23187 in 30nmol/L U46619-induced preconrtaction in the presence of 7 μ mol/L indomethacin, a cyclooxygenase inhibitor, 300μmol/L LNNA, a nitric oxide biosyhnthesis inhibitor, and 1mmol/L tetraethylammonium , a 〓 blocker, or 3 μmol/L glibenclamide , a 〓 blocker, was compared with the control;(2) After the arteries were incubated in KH, UW solution or HTK solution at 4℃ for 4 hours, endothelium-derived relaxation (percentage of 30nmol/L U46619 precontraction) was induced by A23187 in the present of 7 μmol/L indomethacir and 300μmol/L LNNA;(3) After incubation with KH, UW solution and STH (either at 37℃ in oxygenated organ chamber or at 4℃ in a refrigerator for 4 hours), endothelium-derived relaxation (percentage of 30nmol/L U46619 precontraction) was induced by A23187 in the present of 7 μ mol/L indomethacin and 300 μmol/L LNNA.

第一部分研究结果：（1）单纯浸泡于KH的冠状动脉A23187能引发66.67％的血管舒张反应，经TEA及20mmol／L、50mmol／L钾离子作用后，血管舒张反应程度显著降低，但经GBM作用后改变不明显；（2）与保存于KH的冠状动脉相比，A23187引发的血管舒张反应程度，保存于UW液的明显下降，保存于HTK液的无明显变化；（3）在37℃条件下，血管环浸泡于STH出现缓慢轻微的舒张反应，浸泡于UW液初期出现短暂收缩反应，但此后主要以舒张为主：在37℃条件下，血管经UW液保存后，U46619引发的收缩反应程度降低；不论在37℃或4℃条件下，A23187引发的血管舒张反应，经UW液保存后明显下降，但用STH保存后变化不明显。

By neglecting the value change of the charge to mass ratio caused by the different pesticide solution,the corona charging method was used with water solution replacing pesticide solution.

在对不同药液引起的荷质比值的变化不作考虑的情况下，以水溶液代替药液，运用电晕充电法进行荷电喷雾，研究了测量系统对荷质比测量精度的影响。

By the optimal condition, the cobalt content in crude cobalt hydroxide deposited from impure cobalt sulfate solution with chlorinated lime solution is higher than 43%, and the contents of the impurities, such as zinc, manganese, copper, nickel, ferrous and arsenic, are relatively low, the cobalt content in mother solution is less than 0.06g/L, the direct recovery of the cobalt is higher than 98%.

针对某硫酸钴溶液，为获取较高钴品位及较低杂质含量的粗氢氧化钴中间产品，开展漂水析钴工艺控制条件的研究，将所确定的析钴工艺控制条件用于生产，得到了含杂质较低的粗氢氧化钴中间产品。1 试液特征二次含钴物料经浸出中和及初步净化后，得到如表1所示的CoSO4 溶液。

Urea solution, saturated salt water, magnesium sulfate solution and sugar solution were used for floating fluid. Rabbit coccidia oocysts were collected by floating and centrifuging, on which three comparative tests were conducted under same conditions.

利用尿素溶液、饱和食盐水、硫酸镁溶液和砂糖溶液作漂浮液，通过漂浮、离心方法收集兔球虫卵囊，在相同条件下进行3个试验比较。

Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.

您的推杆方式，通过36个有趣的填孔迷你的三维设计的课程，以提升绿党，掩体，桥梁和水的危害，除其他疯狂的障碍。

Some participles can be used either as attributes or as predicatives.

有些分词既可当定语用，也可当表语用。