动力学

Building hydro-junctions in the river estuary region has not only the common problems of general hydro-junctions,but also the technical difficulties on the influence of tributaries afflux.

在支流入汇河口地区建设航电枢纽既有一般枢纽普遍存在的共性问题，又有支流入汇对干流壅水顶托的影响，这种影响是一个非线形动力学过程。

The control of the aging condition, the transient liquid- solid separation of aging slurries, and the analysis of the particle size distribution of CTA and the micro concentration determination of the impurity 4- CBA.

粗对苯二甲酸的高温熟化是一个复杂过程，动力学实验研究的难点在于3个方面，即反应条件的控制，熟化浆料在高温高压下的液固瞬间分离取样与样品的分析测试。

In the explore in water seepage mechanism of highway engineering, at the foundation of author's and other people's research, the author study the groundwater seepage and infiltration of rain and water with the groundwater dynamics, the rock mechanics ,the soil mechanics, the hydrologic geology, the engineering geology, the agrology. With the research result of the water seepage mechanism of highway, the author also study the principle design of waterproof, drainage and water environmental protection. The author's work is as follows:(1) The water circulation, the groundwater type and conversion, the equilibrium and circulation in soil water are introduced and studied; The seepage characteristics of rock and soil in response to stress are analyzed and studied.

作为在"公路工程地质环境中水渗流机制问题研究"中的探索研究，在本人科研和前人研究工作的基础上，以地下水动力学、岩土力学、水文地质学、工程地质学、土壤学为基础，研究公路工程建设对地下水渗流和雨水入渗的影响，以及公路防排水和水环境保护设计的原则方法，具体开展了如下研究工作：(1)首先对水循环、地下水类型及转化、土壤水平衡与循环进行了研究和介绍；分析研究了应力对岩土体渗流特性产生影响的机理。

The potted seedlings of Ailanthus altissima S.,Ginkgo biloba L.and Robiniapseudoacacia L.was treated by soil drought stress to study changes of chlorophyll afluorescence parameter under drought stress.

采用对盆栽臭椿、银杏和刺槐苗木进行土壤干旱胁迫处理的方法，研究干旱胁迫对植物叶片叶绿素荧光动力学的影响。

That air brake isn't the only active element of the Veyron's aerodynamics, either.

空气制动并非是唯一的活性元素的威龙的空气动力学果子吃。

Based on gas dynamics,a mathematical model for the air brake system of train is established.

根据气体动力学原理建立了列车空气制动系统的数学模型，预测了制动系统紧急制动作用；陆界长度与机车大闸排气口面积、列车管定压及列车长度的关系。

The complete coupling between the system rigid and flexible degrees of freedom is allowed since the start of the formulation. The Hamilton's principle is utilized in deriving the equations of motion. Both viscous damping and air drag force have been introduced into this model.

该模型考虑了轴承摩擦阻尼和柔性梁结构阻尼以及空气产生的风阻，并采用一致的方法将阻尼和末端质量的影响引入到动力学方程中。

Whole liver blood occlusion technique without occluding inferior vena cava can prevent bleeding and air embolism.

不阻断下腔静脉的全肝血流阻断术既能控制术中出血，又能保证全身血流动力学稳定。

Pringle maneuver combined with hepatic veins occlusion for complicated hepatectomy is safe, and is effective to prevent dangerous bleeding and air embolism with less disturbance of systemic hemodynamics.

Pringle′s法联合肝静脉阻断技术在复杂肝切除术中既能达到减少术中出血的目的，又能防止术中肝静脉破裂导致空气栓塞，还避免了下腔静脉阻断所引起全身血流动力学紊乱，是一种更安全、有效的血流阻断技术。

Function of air valve for water hammer protection is analyzed with method of characteristics through practical engineering example.

针对长距离有压输水系统的特点，从基本的空气动力学方程入手，分析推导了空气阀的数学模型，并采用水锤计算的特征线方法，进行了空气阀水锤防护的实例分析。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。