查询词典 drum skin

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。

An electrophotographic includes a main frame, a photosensitive drum unit having a photosensitive drum and vertically detachably installed on the main frame, a plurality of development units each having a developing roller and detachably installed on the main frame while sliding in a horizontal direction, and a first door openably installed for mounting or dismounting the plurality of development units.

一种电子照相印制机，包括：主框架；感光鼓单元，该感光鼓单元具有感光鼓并沿竖直方向可拆卸地安装在主框架上；多个显影单元，每个显影单元都具有显影辊，可拆卸地安装在主框架上同时能够沿水平方向滑动；第一门，安装成可打开和关闭主框架的一部分以安装或拆卸所述多个显影单元。

A similar scheme is used for the drum kit, which has color-coded drum heads plus a foot petal.

鼓也采用了类似的程序，鼓皮用不同颜色分区，还有一个脚踏板。

Bass drums known as "drum group","drum kit", commonly known as Lesson.

爵士鼓亦称"组鼓"、"套鼓"，俗称"架子鼓"。

Minnemann's unusual drum kit set up, which includes an array of multiple foot pedals, Gong drum, electronics and unique cymbal configurations, combined with his amazing, extreme interdependence skills has propelled him to superstar status among today's elite drumming royalty.

Minnemann凭着与众不同的套鼓编排——一排踏板、一个"Gong Bass"鼓、多件电子元件和独有的钹片阵，再加上无比的四肢协调技巧，成为当代顶尖鼓手的天王巨星。他四肢分家的技巧，精湛无比；他精彩絶伦的作品，更是惊人。

And they have innately the drum major impulse or the drum major instinct.

他们天生就鼓主要冲动或鼓主要本能。

Yes, if you want to say that I was a drum major, say that I was a drum major for justice.

我相信我们中间很多人读到这段经文时会觉得雅各和约翰真是势利。

Instead of the traditional designs , we innovatively apply variety of layers and colorful patterns to the drumhead and drum body of the junior drum .

它用多姿多彩，层次丰富的图案设计取代了传统儿童鼓鼓桶，鼓皮的单一颜色。

For example, the Dutch Stork company and several narrow drum business card printing and membership card equipment manufacturers have developed a new embedded subsystem, this system works is to flexo business card printing and membership card production system a snap-in of roller system and a printing plate cylinder with a group of rotary screen business card printing and membership card production unit in place, this new business card printing and membership card production unit equivalent to a different drum "" Nano-imprint lithography, due to still use the original UV lamp settings and registration control, so basically does not incur additional equipment for screen business card printing and membership card making and a combination of flexographic printing.

例如，荷兰Stork公司与几家窄幅卷筒制卡和会员卡制作设备制造商共同开发了一款新型嵌入式子系统，这种系统的工作原理是将柔性版制卡和会员卡制作系统里的某一个单元中的网纹辊输墨系统和印版滚筒用一组轮转网版制卡和会员卡制作单元代替，这一新制卡和会员卡制作单元的作用相当于另外一个"压印滚筒"，由于仍旧使用原先的UV灯设置和套准控制，所以基本上不会带来额外的调机时间，为网版制卡和会员卡制作与柔印的组合提供了便利。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48