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Objective To assess the value of ultrasonography in the diagnosis and differential diagnosis of adrenal gland rumors.

目的 探讨超声显像对肾上腺肿瘤的定位与定性诊断与鉴别诊断价值。

ABSTRACT］ObjectiveTo assess the value of ultrasonography in the diagnosis and differential diagnosis of adrenal gland tumors.

目的 探讨超声显像对肾上腺肿瘤的定位与定性诊断与鉴别诊断价值。

Objective:To evaluate the value of CT scan in diagnosing and differential diagnosis of adrenal tumors.

目的：探讨CT对肾上腺肿瘤的诊断及鉴别诊断价值。

Objective: To investigate the value of MRI in the diagnosis and differential diagnosis of nonfunctional adrenal tumors.

目的：探讨MRI对无功能性肾上腺肿瘤的诊断及鉴别诊断价值。

As important ways for numerical solutions of partial differential equations, spectral methods have been developed rapidly in the past several decades. They not only have been widely applied to numerical simulations in various fields such as physics, mechanics, aerology, oceanics etc, and their theories of numerical analysis also tend to perfect.

作为数值求解的一种手段，谱方法在近几十年得到了蓬勃的发展，它不仅被广泛运用于物理、力学、大气、海洋等领域的数值计算，而且它的数值分析理论也不断地趋于完善。

The method may be applied to differential aileron as well as plain aileron.

方法适用于简单副翼和差动副翼。

These have been developed by the numerical integration of the differential equations of gas motion for a spherical blast wave in air.

这些都是根据空中球形爆震波气体运动的微分方程的数值积分得到的。

A differential equation for calculating squeeze-film air damping in slotted plates is developed by modifying the Reynolds equation.

推导出了一个适用于槽板结构压膜空气阻尼的微分方程。

A differential equation that is generally effective for squeeze-film air damping of perforated plate and non-perforated plate as well as in MEMS devices is developed.

推导建立了一个用于微电子机械器件压膜空气阻尼的一般化微分方程。

In this paper the dynamics characteristics are analyzed theoretically at first. According to the unique configuration and mechanics characteristics, the mechanics model and kinetic differential equation of the half-tracked air-cushion vehicle are established. Algorithm of mechanics and lifting-state parameters are put forward and analyzed. And variation ranges of the driving state parameters are obtained and the corresponding influence factors are analyzed. The further qualitative studies on control model are carried out.

因此，本文首先从理论上分析了半履带式气垫车的动力学特性，根据半履带式气垫车的独特结构和力学特性，建立了半履带式气垫车的力学模型和相应的运动微分方程，提出并分析了在纵摇与升沉运动时，半履带式气垫车的力学参数和垫升状态参数的计算方法，得到了在行驶过程中各运行状态参数的变化规律，并分析了相应的影响因素，进而对控制对象模型进行了定性研究。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。