查询词典 hum-drum

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。

Nano-imprint lithography drum skin abrasion or drop, causing the paper punches-drum so that the poor contact dot untrue.

压印滚筒磨损或掉皮，造成压印滚筒与纸张接触不良，使得网点不实。

Drum: The BLSAT high-level fifth or the last watch of the night,the drum skin is the REMO oil skin

本排练房位于同济上外复旦附近，欢迎这几所高校的学生乐队前来排练

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。