In laboratory study , the experiments of nh / ? transport and transformation has been conducted with columns packed with homogeneous sandy loamy under saturated and unsaturated conditions 本文研究以室内外试验为基础，以数值模拟为手段，开展相应的研究工作。
Under the condition of lack of effective demand in china , some researchers also proposed to enlarge consumption demand by the way of redistribution of income 在中国经济面临有效需求不足的背景下，部分研究人员也提出了以收入再分配为手段扩大消费需求的政策建议。
Mathematics experiment is an exploring movement , which takes question as its carrier , computer as its instrument , mathematics software as its tool , and students as its main body 摘要数学实验是以问题为载体，以计算机为手段，以数学软件为工具，以学生为主体的探索活动。
Founded in 1997 , shenzhen king brother pcb technology co . , ltd . is a high tech enterprise supplying pcb design and manufacture with one - stop service 深圳市金百泽电路板技术有限公司成立于1997年，是一家以设计、制造为手段，以服务为目的，提供一站式pcb设计及生产的高科技企业。
By means of variable frequency and adjustable speed , the variable air volume air conditioning automatic control system saves energy through setting different static pressure values in different time periods 变风量空调控制系统以变频调速为手段，分时段设定静压值以实现节能。
Based on the model test , analyzed in finite element program , the thesis gives credible data to the design of this bridge and the model test of the same type bridge , 本文以试验为基础，理论分析为手段，为茅草街大桥的设计与计算提供依据，其结论也为同类型桥梁结构的设计研究提供借鉴。
This paper summarizes what paleoclimate information is contained in clay minerals , and it is intent to use clay minerals synthetically as the means to reconstruct paleoclimate 本文旨在综述各种研究方法所能提供和揭示蕴藏于黏土矿物中的古气候信息，以期全面综合地利用黏土矿物为手段来重建古气候。
Based on the principle of “ information - oriented and finance - supported market with investment means ” , it strives to build a stable and efficient market circulation network system 公司本着以“市场为主体，金融为依托，信息为导向，投资为手段”的经营方针，致力于构建稳定、高效的市场流通网络体系。
Taking advantage of the favorable natural conditions and advanced breeding techniques , and relying on their diligence and wisdom , the fishermen here have found a road leading to prosperity 优越的自然条件，先进的养殖技术，以海洋为依托，以科技为手段，他们靠着自己的勤劳和智慧，走出了一条致富的新路。
Under the different work conditions of the hi - vap cooling , the temperature of the bof shell was predited by means of bp network , and making use of the fem to calculate and collect training data 用有限元计算采集训练数据，以bp网络为手段，对不同水流通量、不同时刻的汽雾冷却转炉炉壳的瞬态温度进行了预报。
