充分条件

Downhole throttling technology is to adjust downhole pressure through installing the throttle valve in an appropriate position on the tube. The gas flowing through the throttle valve is heated up by the geotherm and the conditions of gas hydrate formation are changed, so as to effectively prevent gas hydrate formation, decrease transportation pipeline pressure, eliminate attemperator, and reduce the cost of gas production.

井下节流技术将井下节流器置于油管某一适当位置来实现井筒节流降压，并充分利用地热对油管内流体加热，使节流后气流温度高于节流后压力条件下的水合物形成初始温度，从而达到降低地面管线压力，取消地面加热保温装置、降低气井开采成本的目的。

Based on the model of Bahar and Vedat, this paper proposed a more practical model with the improvement on objective functions, constraint and variables.

本文在充分考虑事故发生概率，运输量，多商品风险累加，特殊道路风险限制等多种因素基础上，对BAHAR和VEDAT（2004）[1]的模型在上下层目标函数、上层约束条件以及下层变量等多个方面进行了改进和完善，提出了更符合现实情况的二层网络设计模型。

Amylase activities in stomach and liver were highest at neutral or weak acid condition and in pyloric caeca and intestine were strongest in alkaline condition.

幽门盲囊和肠淀粉酶在碱性环境下活力最大，肝胰脏和胃淀粉酶在中性或酸性条件下活力充分发挥。

The subject matter of standing in administrative litigation,which is mainly about the judicial protection of "individuals"aggrieved by an alleged misuse of administrative power ,is itself an area where the characteristics and basic trend of the constitutionalization of socialist China are vividly demonstrated.

设立原告资格所要解决的问题是具备何种条件的主体可以成为原告。依据《布莱克法律大辞典》的解释，原告资格又称为&起诉资格&，是指某人在司法性争端中所享有的将该争端诉诸司法程序的足够的利益，其中心课题是确定司法争端对起诉人的影响是否充分。

Usually the crural can be most easily affected. However, the main reasons for the injured are the vices of skills, the insufficiency of preparation, the conditions of the body and mentality.

而造成运动损伤的主要原因多表现为技术上的缺陷，准备活动不充分以及环境、身体条件和心理等方面。

Purpose: dust filter in air conditioning ventilation program Speciality: utilize ultrasonic thermo-melt techniques;have firm structure but depreessed cracking;adopt high-quality electrostatic nonwovens with pockets;diffluent equally,keep pockety,reduce consumption and make full use of filter materials;without the danger of old fiber glss rupturing and the discomfort to human,as well as the condition of breeding microbe;long working life.

特性： 采用热融工艺，结构稳定，降低破漏风险；采用长效静电无纺布，内衬小口袋，既分流，均流，又保持袋形，降低损耗，充分利用滤料；无旧式玻纤断裂的危险及对人体造成的不适，无导致微生物滋生的条件，而且有较长的使用寿命，最高使用温度可达80

Electrosynthesis is a new method for preparation of αalanine. There is few reference about it, but electrosynthesis has a high selectivity and a high current efficiency. In addition, the operating condition is mild, and the reaction process is easy to be controlled.

有关电化学法合成α—丙氨酸的文献仅有两篇，虽然这方面的研究很不充分，但是电合成法避免了剧毒物质的使用，操作条件温和，通过选择电极材料、电极电位和电流密度等电化学参数，能够控制合成发应的进程，而且电合成可以具有很高的选择性和电流效率。

Collaborative virtual battlefield discussion enviroment is the extent and development of traditional Collaborative virtual enviroment, integrates cyber-cooperation, virtaul reality, internet-based 3D visualization, media streaming, becomes a new method of military automated command system ensurer under high tech condition. This paper reseaches the theory and realization techniques of Collaborative virtual battlefield discussion enviroment deeply based on enough understand of Collaborative virtual enviroment theory, and explores a prototype sysytem.

协同虚拟战场研讨环境是对传统协同虚拟环境的延伸和发展，它是对计算机协同、虚拟现实、网络三维可视化、流媒体等多种技术的集成，是高技术条件下军队指挥自动化保障的一种新方法；本文在充分了解协同虚拟环境及其相关理论的基础上，对协同虚拟战场研讨环境的理论和实现技术做了较为深入的研究和探索，并开发出了原型系统。

Association of vascular endothelial growth factor expression with intratumoral microvessel density and tumor cell proliferation in human epidermoid lung carcinomas.

我们观察到随着细胞周期启动，VEGF也表达，其意义可能在于Hep G2细胞虽不表达VEGF受体，但VEGF诱导血管形成，使肿瘤细胞获得充分的营养和氧气，为细胞增殖创造有利的外部条件。

After a study on Chinese financial practice, we find that though Chinese banking system has high cost and low efficiency, one side, Chinese security market has very low efficiency to overcome asymmetric information and has many unsolved problems in short term that brings very high additional cost, so security market is not a good system to substitute the Chinese banking system and must develop after these problems are solved, on the other hand, the cost of Chinese banking system is mainly exogenously produced, the experiences of western commercial banking practice and the joint-stock reform in some Chinese banks have proved that the efficiency of Chinese banking system can be improved. So one of our conclusions is that China should emphases on the reform and development of the banking system.

一方面，本文通过对中国证券市场的进一步分析，发现中国证券市场制度设计上存在严重不合理，短期内仍然缺乏合适的生存环境，这也导致其过去十多年的超常规发展中不仅具有低的效率，而且形成了许多短期内难以克服的缺陷，这充分表明证券市场不应成为我国金融体系短期内的重点方向，证券市场未来的进一步发展必须以这些问题和缺陷的解决为前提；另一方面，进一步的分析表明，我国银行业目前的巨大成本主要为外生，同时，对西方发达国家银行业发展和我国银行股份制改革的经验总结表明，只要在一定的条件下，银行业的效率完全可以有效提高，因而，中短期内我国应重点对银行业进行改革和发展，尤其是要加快银行业的股份制改革进程。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。