主要问题

Based on the summarization of current situation of fluorine-free mould fluxes at home and abroad,the main problem during decreasing fluorine for high carbon steel and peritectic steel mould fluxes was analyzed,which includes the stability between viscosity and temperature at high temperature as well as effective control of crystallization properties .

综述了国内外无氟连铸结晶器保护渣发展状况，分析了目前高碳钢和包晶钢用保护渣降氟过程中面临的主要问题：高温时粘度-温度特性的稳定性以及保护渣结晶性能的有效控制。

Nowadays there is a certain difference between rapid scanning and automatic data acquisition method adopted in automatic test and necessary stable time required by reflectance test and strict requirement on object to be tested, this is the main issue existing in coal petrologic automatic analytical technology now.

目前自动测试所采取的快速扫描和自动数据采集方法，与反射率测试所需的必要稳定时间和对测试对象的严格要求有一定差距，这是目前煤岩自动分析技术存在的主要问题。

Field surveys show that Phalaris minor is a major problem in wheat in the rice-wheat system of the Punjab, accounting for a loss of over 20-35% of yield in nearly one-third of fields.

大田调查表明，小粒鹃草（是旁遮普省稻麦制中小麦的主要问题，几乎l/3的大田损失产量20~35%。

Field surveys show that Phalaris minor is a major problem in wheat in the rice-wheat system of the Punjab, accounting for a loss of over 20-35% of yield in nearly one-third of fields.

大田调查表明，小粒虉草（是旁遮普省稻麦制中小麦的主要问题，几乎 l/3的大田损失产量20~35%。

Field surveys show that Phalaris minor is a major problem in wheat in the rice-wheat system of the Punjab, accounting for a loss of over 20-35% of yield in nearly one-third of fields.

大田调查表明，小粒？草（是旁遮普省稻麦制中小麦的主要问题，几乎l/3的大田损失产量20~35%。

Based on the background information on the part of the existing strategy adopted by the Beijing Gas Group, this paper conducts a detailed analysis of strategic issues of this group company by using such analytical tools as SWOT Matrix, Boston Matrix and Portor's Five Forces Model. The author discusses the status in quo of global gas market and domestic market, the internal environment of the group company, and the structure of gas industry. The major strategic problems of the group company are summarized on the basis of above-analysis, including the obsolete thoughts of decision makers, the weak management system of human resources, the deviation on building corporate culture, and the teetering on information processing.

论文在阐述燃气集团公司战略背景的基础上，采用SWOT矩阵、波士顿矩阵、波特竞争力模型等工具和方法，从燃气行业战略发展的角度出发，对全球燃气市场、国内燃气市场、燃气集团公司内部环境，以及产业结构进行分析，指出燃气集团公司目前在战略管理上存在的主要问题，如观念陈旧、人力资源开发和管理体系薄弱、企业文化建设的偏差、信息化进程缓慢等等。

On basis of conclusion arouse from analyzing or by using SWOT matrix analysis, Poter's generic competition strategy, through the business situation, we bring up some ideas of adopting differentiation strategy.

波特的一般竞争战略理论提出了企业应采取的竞争战略；最后结合各种分析的结果，根据企业的实际情况提出了实施竞争战略的基本步骤及需解决的主要问题。

According to the safety problems in earthquake for the modern urban areas, some main problems are analysed and the safety precontrol countermeasures of the modern urban lifeline system are put forward in this paper, in order to improve the capacity of disaster-resistance in mordern city.

摘要根据现代城市抗震防灾要求，分析现代城市抗震防灾需要研究解决的主要问题，提出现代城市生命线系统抗震减灾对策及具体的安全预控措施，从而提高城市的抗震防灾能力。

According to the safety problems in earthquake for the modern urban areas, some main problems are analysed and the safety precontrol countermeasures of the modern urban li feline system are put forward in this paper, in order to improve the capacity of dis

摘要根据现代城市抗震防灾要求，分析现代城市抗震防灾需要研究解决的主要问题，提出现代城市生命线系统抗震减灾对策及具体的安全预控措施，从而提高城市的抗震防灾能力。

The orientation of the constraint of criminal prejudication is one of the main problems in Chinese criminal prejudication system.

刑事判例拘束力的定位是困扰我国刑事判例制度建构的一个主要问题。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！