this paper is an attempt to prove that ancient chinese people had a strong sense of history and a precise conception of the continuity of time.

it feels as if it is made of cotton. the estuary has a sense of history and heritage.

译文：摸起来感觉它好像是棉制的。试译：这个港湾有种历史传统感。

互联网摘选

a broad and deep sense of history

宏阔、深邃的历史意识&论路遥的创作追求

互联网摘选

each has its own sense of history and appeal.

每一处海滩都展现了其独特的历史与魅力。

互联网摘选

In this paper, nonlinear free flexural vibrations analysis of closed circular cylindrical isotropic shells are presented.

本文分析了各向同性封闭圆柱壳的非线性自由振动。

互联网摘选

Numerical Analyses of the Coupling of the Flexural and Torsional Vibrations of Rotary Shaft System

旋转轴系弯&扭振动耦合的数值分析

互联网摘选

Locally resonant elastic wave band gaps in flexural vibrations of slender beams

细直梁弯曲振动中的局域共振带隙

互联网摘选

Increment transfer matrix method and its application in the coupled flexural and torsional vibrations analysis

增量传递矩阵法及其在轴系弯扭耦合振动中的应用

互联网摘选

The planar torsional vibration of an arbitrary planar rod and the planar flexural vibrations of an axially compressed straight rod and a ring without torsion are discussed when the ends of the rod are fixed. The natural frequencies and the damping coefficients are derived.

讨论两端固定条件下任意形状杆的平面扭转振动，以及无扭转的轴向受压直杆和圆环杆的平面弯曲振动，导出其自由振动频率和阻尼系数。

互联网摘选

Transient Analysis on Coupled Flexural and Torsional Vibrations of Cracked Rotor

裂纹转子弯扭耦合振动瞬态分析

互联网摘选

Through numerical simulation, the waterfall plot, bode plot and the influence of acceleration on flexural and torsional vibrations are analyzed.

通过数值仿真手段，着重分析了转子升速过程中弯振和扭振的瀑布图、Bode图以及加速度的影响。

互联网摘选

Experimental investigation of ultrasonic turning flexural vibrations system

超声车削弯曲振动系统的试验研究

互联网摘选

Therefore, the longitudinal and flexural vibrations can be excited by the same generator.

由于该系统由两个相同的换能器激发，且系统中纵向及弯曲振动的共振频率相同，因此，该系统的超声频激发电源只需一个。

互联网摘选

Timoshenko equations for the flexural vibrations of bars with non-uniform cross section are deduced from three-dimensional elasticity theory, and the range of their validity is discussed.

从三维弹性力学的基本原理出发，论证了对称变截面杆弯曲振动的Timoshenko方程的正确性，并讨论了它的适用范围。

互联网摘选

A Method for Estimating Free Flexural Vibrations of Cantilever Bar of Multi& Step Varying Cross Sections with Lumped Mass

多阶变截面且有集中质量的悬臂杆弯曲自由振动计算方法

互联网摘选

When the rotational frequency equals the sum ( or the difference) of the natural frequencies of the flexural and torsional vibrations, coupled flexural torsional resonance may occur.

当转动频率接近于扭转振动固有频率与弯曲振动固有频率之和或之差时，可能会发生弯扭耦合共振。

互联网摘选

The characteristics of coupled flexural torsional vibrations of rotary shaft systems are studied to improve the safety of rotary shaft systems.

为进一步提高旋转轴系的安全性，研究了旋转轴系弯曲振动与扭转振动耦合问题。

互联网摘选

The equations of motion of circular cylindrical shell for large amplitude flexural vibrations are deduced in the classical nonlinear elastic mechanics method. The static versions of these equations are of the same approximation as those of the von Karman plate theory.

文中采用经典的非线性弹性力学方法推导了圆柱壳的大振幅运动方程，这些方程的静态形式与冯·卡门的板理论方程具有同样的精度。

互联网摘选

By correcting the length of the metal slender rods, the simultaneous resonance of the longitudinal and flexural vibrations in the transducer is acquired.

通过修正金属细棒的长度和横截面积，实现了换能器中纵向振动与弯曲振动的同频共振。

互联网摘选

in this example, we have two tenants sharing a single database and when additional tenants come in, their data are moved to different database shards based on the tenant id.

在本例中，我们有两个共享单一数据库的承租者，且当有其他承租者进入时，其数据基于承租者ID被移动到不同的数据库碎片。

互联网摘选

because of strong data isolation and compliance requirements of the tenant, user data may reside in a dedicated database in an on demand environment for each of the tenants.

由于承租者高度的数据隔离和遵从性需求，用户数据可能位于按需环境中的专用数据库（用于每个承租者）中。

互联网摘选