压过

The role of spring pressure difference over flow control valve guts on the size of the area, so that the flow through the valve constant.

弹簧受压差的作用自动控制阀胆上过流面积的大小，从而使通过阀门的流量恒定。

While the Addis hypothesis of work hypertrophy to excrete urea is erroneous, a more modern concept associated with glomerular hyperfiltration was proposed in the 1980s by Brenner.25 This hypothesis states that after any significant loss of renal function, surviving nephrons subsequently undergo functional and structural changes including increases in single nephron GFR and glomerular capillary pressure increases.

当Addis成果假设过度膨胀分泌尿素的观点是不正确的，Brenner在1980年代提出了有关肾丝球体高滤过率的最新观点25。这个前提陈述，在肾脏功能有任何显著的丧失之后，幸存的肾脏小过滤器也接著经历了机能上和构造上的改变，包含增加了一单位小过滤器的肾脏丝球体过滤率和提高肾丝球体毛细管压。

When the output voltage is greater than over-voltage setting value,there's no DC output,the module can't be restored automatically and should be powered off and re-up electricity.

当输出电压大于过压设定值后，模块保护，无直流输出，模块不能自动恢复，必须将模块断电后重新上电。

The meadow stones glowed white-green and a flinty wind worked over the meadow, scraped the fire low, then ruffled it into yellow silk sashes.

草地上的石头泛着白绿色幽光，冷风呼啸而过，把火苗压得很低，就像给火焰镶上了一条黄色的花边儿。

The meadow stones glowed white-green and a flinty wind worked over the meadow, scraped the fire low, then ruffled it into yellow silk sashes.

草地上的石头泛着白绿色幽光，冷风呼啸而过，把火苗压得很低，就像给火焰镶上了一条**的花边儿。

This machine is used to punch bridge hole at die cutting ruler and creasing rounded edge at tie point of die cutting plate.

简单介绍：本机用于模切版制作时，模切版连点处模切刀，压痕线冲过桥孔。

Companies using advanced CAD, CAM technology for design and manufacture complete sets of molds, using coordinate measuring stick instrument for domestic FAW, two gas, Yuchai, carvedilol trailers, Yunnan, Chengdu Engine Factory, Shenyang Mitsubishi, Tianjin Hyde and other large enterprises have been supporting the production of engine block, machine covers, exhaust pipes, pumps, axle housing, behind steering knuckle and Gravity Casting intake branch pipe, motorcycle cylinder head and a variety of die-casting mold.

公司采用先进的CAD、CAM技术进行成套模具的设计制造，用三座标仪进行扦测，为国内一汽、二汽、玉柴、洛拖、云南，成都发动机厂、沈阳三菱、天津海德等大型企业配套生产过发动机机体、机盖、排气支管、水泵、桥壳、落后转向节及重力铸造的进气支管，摩托车缸盖及多种压铸模具。

A dynamic simulation mathematic model consisted of conservation equations of mass, momentum, energy, superheat steam equation, pressure drop equation, two-phase flows equations and relations before and after oblique shock.

建立了由两相流体质量守恒方程、动量守恒方程、能量守恒方程，过热蒸汽关系式、压降关系式、激波前后关系式及其它两相流关系式组成的动态仿真数学模型，模型形式为非线性方程组。

When they were close up with one another, the son of Atreus missed his aim, and Iphidamas hit him on the girdle below the cuirass and then flung himself upon him, trusting to his strength of arm; the girdle, however, was not pierced, nor nearly so, for the point of the spear struck against the silver and was turned aside as though it had been lead: King Agamemnon caught it from his hand, and drew it towards him with the fury of a lion; he then drew his sword, and killed Iphidamas by striking him on the neck.

现在，他将在此迎战阿伽门农，阿特柔斯的儿男。他俩相对而行，咄咄逼近，阿特柔斯之子出手投枪，未中，枪尖擦过他的身边，但伊菲达马斯却出枪中的，打在胸甲下，腰带的层面，压上全身的重量，自信于强有力的臂膀。尽管如此，他却不能穿透闪亮的腰带，枪头顶到白银，马上卷了刃尖，像松软的铅块。阿伽门农，统治着辽阔疆域的王者，抓住枪矛，抵捅回去，狂烈得像一头狮子，把枪杆攥出他的手心，然后举剑砍进脖子，松软了他的肢腿。

The main contents of the present paper include: 1、The mechanism of fouling accumulation and the effects of fouling and slagging on boiler performance are analyzed. The model of fouling increasing is developed on the basis of sediment rate and denudation rate. The fouling monitoring models for boiler furnace and convective sections based on heat balance, the ones for air heater based on converted pressure difference are given. The implement results show that these models can reveal the cleanliness of boiler heat transfer surface. 2、The disadvantages of the model for boiler furnace fouling and slagging monitoring based on heat balance are discussed, and the calculation of radiant heat flux is considered as the primary difficulty.

主要包括以下内容： 1、分析了锅炉受热面污染形成的机理，从灰污的沉积率和剥蚀率角度出发，推导了受热面灰污增长的基本模型，分析了灰污热阻随积灰时间和烟气流速变化的规律，并通过大量现场试验，得到了沉积常数与时间常数的取值范围； 2、针对炉膛、对流受热面和空气预热器等不同受热面的传热特性，分别建立了基于热平衡和折算压差的污染在线监测模型，经实践验证，其监测结果能够满足现场工程应用的精度要求； 3、分析了基于热平衡原理的辐射、半辐射污染监测模型的不足之处，指出了机理模型因对炉内辐射换热量计算不准确，导致对以辐射换热为主的炉膛和以半辐射半对流的屏式过热器监测效果不够理想。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。