Results indicate that the lateral forcing vibration frequency of train is close to the lateral natural vibration characteristics of the bridge when trains running at 70 and 75 km · h-1, and the resonance occurs.

In order to reduce the vibration, we first make a modal analysis of the handle of the walking tractor and find that the second modal frequency is coupled with the primary forcing frequency of the engine.

为了减小振动，首先对扶手架进行模态分析，发现了第二阶模态频率与发动机一阶惯性力频率耦合。

Based on a Jeffcott rotor model with nonlinear radial rub force, the approach to chaos is studied when the forcing frequency and nondimensional unbalanced mass are treated as control variables.

对具有质量偏心仅考虑径向碰摩力非线性的Jeffcott转子模型，研究了其通向混沌的路径。

By wet mode analysis, the dependence of the reflectivity of the shell on the forcing frequency were derived and computed.

通过湿模态分析方法，给出了微球壳的散射率与外激励频率之间的关系曲线。

Forcing shot, then blowing up girls' schools, threatening to kill anyone who stood in their way.

突施冷箭开枪射击，然后炸毁女子学校，威胁着要杀害挡住他们去路的任何人。

There were some significant differences in the physiological and biochemical characteristics and growth and development of rubber seedlings between that selected by hypertonic solution and water or germinated in sandy forcing bed.

高渗溶液人工胁迫选出的橡胶籽苗在生理生化特性及生长发育方面与清水浸泡和沙播对照有明显的差异。

France is on the verge of elimination from the tournament, their 2-0 defeat to Mexico on Friday forcing tension between management and players into the open.

法国队目前处于被淘汰的边缘，在上周五的比赛中，他们0-2负于墨西哥队，从而使得教练组和球员之间的紧张状态公开化。

In this paper, the rectifying method of a deviated large calibre reinforced concrete pipe is explained and the instance of the deviation rectification of main pushing sewage pipe of Pudong, Shanghai by means of forcing out of the pipe and forcing in the pipe.

本文阐述了大口径钢筋混凝土管顶偏后的纠正方法，并着重介绍了上海市浦东排污水干管顶偏后通过管外加力法和管内加力法将其纠正的实例。

This latest attempt essentially involves forcing mud down a pipe into the well.

最近的努力包括通过管道向井中注入泥沙。

Comparative Study on Comprehensive Character of the New Forcing Culture of Strawberry Cultivar in Hefei Region

合肥地区促成栽培草莓新品种综合性状比较研究

Studies on the Forcing Culture of Cut Summer Flowering Chrysanthemum in Solar Greenhouse

切花夏菊促成栽培技术研究

Study shows, bloom date can be regulated with forcing culture and chemical treatment.

结果表明，化学药剂处理可以打破观赏桃花自然休眠，结合设施栽培，可以达到调控花期的目的。

Studies on Preservation and Forcing Culture Technologies of Cut Peony Flowers

芍药贮藏切花保鲜技术及芍药催化技术研究

1351 was suited to forcing culture in winter to spring;

品种1351适宜用于冬春季促成栽培；

Studies on the Effect of Forcing Culture on the Growth of Thunberg Fritillary ( Fritillaria thunbergii) Introduced from South China to the Northern Region

促成栽培对浙贝北引生长效应的研究

In this paper, the molding methods of air pushing clamp plate and air compact formed clamp plate were used to improve the compact homogeneity of molding sand.

本文利用气冲压板冲击、气冲成型压板冲击等紧实方法，对气冲紧实的匀实性进行了改进研究。

But this problem will be settled preferably by using the air-stream and synchro-formed clamp plate impact molding.

利用气流与成型压板同步冲击造型法，较好地解决了这个问题。

Bend formed steel plate lifting shackle Analysis and Calculation of Crank's Optimum Section Shape in Three-Crank Universal Joint

钢板弯曲成形吊叉三叉杆滚子式万向联轴器叉杆修形的分析与计算

Bend formed steel plate lifting shackle

钢板弯曲成形吊叉

Submarine canyon is a geological structure that formed by plate movement in the crust.

海底峡谷，是由于地壳板块运动而形成的一种地质构造。

Rock body formed in plate extensional background and a loose stress state.

岩体形成于板内引张的应力松弛环境。