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The theory of normal form are used to investigated the normal forms in the four dimensional nonlinear systems with cubic nonlinearities.

这三种共振情形分别是1：1内共振和主参数共振；1：2内共振和主参数共振；1：3内共振和主参数共振。

The second kind of Fredholm integral equation of the single pile in layered saturated viscoelastic soil is obtained through the fundamental solutions.

然后对所得的积分方程进行Laplace变换，得到变换域内的积分方程，对变换域内的积分方程采用Schapery逆变换方法得到时域内水平单桩的近似积分方程。

In 'Huanong Bendizao',notable peaks were found for IAA in the seed,rind and pulp and seed ABA at the stage of fruit enlargement,GA1/3 and ZR concentrations in the seed were relatively high and significantly increased during fruitlet growth and early fruit enlargement, whereas the levels of four endogenous hormones in the rind and pulp were relatively low and changed a little as time passed.

2华农本地早种子、果皮和果肉IAA及其种子ABA含量均在果实膨大期内出现明显峰值，在幼果阶段至果实膨大初期内种子GA1/3和ZR含量均居较高并出现明显上升，对应的果皮、果肉4种内源激素水平均相对较低且变幅小。

In 'Huanong Bendizao', notable peaks were found for IAA in the seed, rind and pulp and seed ABA at the stage of fruit enlargement, GA(subscript 1/3) and ZR concentrations in the seed were relatively high and significantly increased during fruitlet growth and early fruit enlargement, whereas the levels of four endogenous hormones in the rind and pulp were relatively low and changed a little as time passed.

2华农本地早种子、果皮和果肉IAA及其种子ABA含量均在果实膨大期内出现明显峰值，在幼果阶段至果实膨大初期内种子GA(下标 1/3)和ZR含量均居较高并出现明显上升，对应的果皮、果肉4种内源激素水平均相对较低且变幅小。

After the germ-free operation of gastrostomy, rats in each group of enteral nutrition were treated with thesocaloric and isonitrogenous nutritional formulas respectively for 7 days.

目的：研究肠内免疫营养对创伤后大鼠肠道屏障功能的影响。方法：将30只Wistar大鼠随机分为3组，即对照组、普通肠内营养组、肠内免疫营养组。

Simulation results show that bubbles induce the circulation of particles in the fluidized bed in which the distribution of particle velocities can be expressed by the Gauss distribution.

计算结果表明床内气泡的形成造成床内颗粒的循环，使得流化床内颗粒具有不同的轴向和径向脉动速度，颗粒分速度分布近似服从高斯分布。

This research presented a new guide mechanism and belt driving theory of the abrasive band polishing for inner aperture, satisfied the driving requirement of abrasive belt leading smoothly into grinding area, realized the band grinding and band polishing of inner aperture, developed a abrasive band polishing headstock for of the ball track of ball bearing and roller bearing individually adopting a way of curvature concave oscillating and vibrating, researched the process regular and fundamental process method and parameter of abrasive band polishing of ball track. The results of experiments and tests showed that the surface roughness of ball track by abrasive band polishing can reach Ra0.02μm, and the original geometric cross section shape precision of ball track can be kept.

本项研究提出了砂带研抛内孔的新型导引机构和传带原理，满足了砂带平稳导入内孔磨削区的传动要求，实现了内孔的砂带磨削和研抛；研制了采用弧面摆动和振动方式分别用于球轴承滚道和滚柱轴承滚道研抛的砂带研抛头架；研究了轴承滚道砂带研抛的工艺规律和基本工艺方法、工艺参数；实验测试结果，轴承滚道砂带研抛的表面粗糙度达Ra0.02μm，研抛过程保持了滚道的原始几何截面形状精度。

Gimbals can move in two different planes. When measured in one plane, the gimbal must be kept stable in the other one.

由于万向节能同时在两个不同的平面内运动，所以在检测一个平面内的摆动扭矩时必须保证在另一个平面内的静止。

Records showed that 98% of women were discharged within 23 hours postsurgery; 44% were discharged within eight hours, and 17% within four hours."Their subsequent disability was not any greater than what we'd seen in our patients during laparoscopy," said Dr. Glasser. Average hospital length of stay was 13.6 hours; two patients (1.4%) remained hospitalized for 48 hours.

纪录显示，有98%的女性患者可在手术后23小时内出院，44%於8个小时内出院，甚至有17%的患者在4个小时内出院，平均住院期为13.6小时，有两位患者(1.4%)住院达48小时，而这些患者在手术后所产生的异常并不高於腹腔镜手术者。

The right and left TMJ were removed from the animals, and all the specimens were observed. 3 days later, we could find that all TMJ components showed signs of injury. The synovial membrane was torn up and the cartilage of the condylar process and glenoid fossa was destructed.

伤后3天可出现关节滑膜撕裂、颞骨和髁突骨质破坏、关节腔内积血，关节盘以及关节附着的断裂等改变；7天后，关节积血少见。2周后可见关节内明显的破坏性改变，关节腔内还可有渗出液存在。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新