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New type of water chemistry for utility drum boiler and its principle and characteristic Two kinds of water chemistry's main principle and characteristic are detailedly analyzed. Against the problem of high eroding speed, high Fe content in feed water and boiler water, high scaling speed, short chemical cleaning interval, needing poisonous chemical deoxidant, etc for drum boiler's deoxidization water chemistry and difficulty of using oxidation water chemistry, a new type of water chemistry is put forward on the basis of analyzing the characteristic of whole power station's water steam cycle system, principle of two kinds of water chemistry and their practical effect in every cycle stage. Considering two water chemistry's merit, a new water chemistry called Limited Oxidation Water Chemistry is put forward, which is a local slight oxidization no-deoxidant water chemistry. And the proposed method's principle, control parameter, applying condition, start-lay up and emergency measures are initially calculated and analyzed.

三、新型汽包炉水化学工况的提出及其原理和特点详细分析了国内外现行两大类水化学工况处理的核心原理和特点，针对现行汽包炉还原性水化学工况处理所存在的系统腐蚀速度相对较大、给水和炉水铁浓度高、锅炉结垢速度快、机组酸洗间隔短、无法避免有毒化学除氧剂的使用以及氧化性水化学工况在汽包炉机组上应用的困难等问题，在详细分析电站整个水蒸汽循环系统的特点、两类水工况处理的原理和对循环中各段处理的实际效果等的基础上，综合两者的优点，提出了一种新型的局部轻微氧化性无除氧剂汽包炉水化学工况－"汽包炉有限氧化性水化学工况"处理原理，并初步计算、分析和确定了该种新型水化学工况的主要工艺控制参数、应用条件、启停与紧急情况处理等。

But it is difficult to find a perfect method to control drum boiler's corrosion. Now deoxidization water chemistry for drum boiler has the characteristics of high corrosion speed, high Fe content in feedwater and boiler water, high scaling speed, short chemical cleaning interval and needing poisonous chemical deoxidant, etc.

火力发电站由于大量使用金属材料，并且金属材料的使用环境大都接近其极限使用条件，因而常由腐蚀而引发事故，造成重大损失。

For illustration, a detached house needing 10 kW (3 ton ) of heating capacity might need three boreholes 80 to 110 m (260 to 360 ft) deep.

供热能力可能需要3个钻孔的80至110米（260到360英尺）深[7] （阿热 12，000吨，是英国热量单位每小时或3.5 千瓦。

Not needing to continue on dialysis has an enormous impact on quality of life.

不需要继续对透析有一个巨大的影响生活质量。

Diaz: You know, and I-I didn't mean anything about you needing a gym class.

你知道，其实我并不是故意的说你需要健身。

However, it is in inhalation though that you will find yourself needing aromatherapy diffuser wholesale.

不过，虽然是吸入香薰，你会发现自己需要扩批发。

Complexity theory provides the additional sensibility of comfort with not knowing, and not needing to know, where exactly the impetus for change lies within the matrix of each participant's individual history, the history of the therapeutic couple, and the dyad's current mode of relating.

复杂性理论提供一种附加的敏感性，带着一种自在，即便不了解，甚至不需要了解改变的动力隐藏在每一个参与者个人历史，治疗双方的历史，及两者现在关联的模式的矩阵中的哪里。

The work of this paper include nailing down the meaning of cultivation of creationary thinking during college physics teaching, analysing of relative theory about creationary thinking ,such as its definition,trait, essence and so on, and demonstration of creationary thinking educable, discussing several kinds of creationary thinking and it's exhibition in physics phylogeny , bringing forward idiographic tactic of cultivation of creationary thinking, which is the core of the paper, putting forward two problems needing embedded thinking, which are correlative with cultivation of creationary thinking successfully.

本文所完成的工作包括分析并明确了在大学物理教学中培养创造性思维的重要意义；论述创造性思维的相关理论和其可培养性；分别探讨了各种创造性思维方式及其在物理科学发展中的表现；提出培养创造性思维的具体策略，这也是本文的核心部分；提出了成功地培养创造性思维需要继续深入思考的两个问题。

The elevated road that was going to impact on the construction was built of steel not needing formwork, thus huge scaffold to hold it up.

可能影响工程施工的高架道路部分使用了钢材，因此无须模具灌浆，用了大量的脚手架才能把它支撑起来。

Preparations from STEP 1 without needing to set SSH back up, etcetera.

准备从1步，不需设定的ssh备份，等等。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。