压过

PLUG VALVES Undercooling is small, steam leakage rate of less than 3%, the maximum back-pressure rate of 75%, connectors are more sensitive than the free float steam trap.

过冷度小，漏汽率小于3%，最大背压率为75%，连接件比较多，灵敏度不如浮球式疏水阀。

PLUG VALVES Undercooling is small steam leakage rate of less than 3% the maximum back-pressure rate of 75% connectors are more sensitive than the free float steam trap.

过冷度小，漏汽率小于3%，最大背压率为75%，连接件比较多，敏捷度不如浮球(_lian jie jian bi jiao duo _ling min du bu ru fu qiu)式疏水阀。

Systems connected between two POWER sources, such as building to building, office to factory floor, or any SYSTEM covering LONG distances should require some level of transient protection.

连接有两个电源的系统，如从一个建筑物到另一个建筑物，办公区到厂区，或延伸距离长的系统，都需要一定水平的瞬态过压保护。

The valve core dynamic fixed flow balancing valves is compossed of pistons with changeable flow area,hi-presision(±5%)springs and sustaining devices. Affected by differential pressure and springs,the flow nipple will do piston movement.During the movement,the fliw area changes and the flow rate sustains at a constant value.

动态流量平衡阀的阀芯是由可变过流面积的阀胆和高精度（±5%）弹簧及支撑装置组成，受压差和弹簧的作用，阀胆的节流嘴可在阀胆罩内做活塞式往复运动，运动过程中流通面积发生改变，从而使流量维持在恒定值。

The invention provides a compound for preventing foetus neural tube abnormality and pregnant woman iron deficiency anemia and its manufacturing method, it includes active ingredients and carrier, the active component is mainly made up of 1:25 weight ratio of folacin and hemin, the dosage is: folacin 0.2-0.6mg, hemin 5-15mg, the carrier is 150-300g of mannitol, the product can be produced through following steps and order: the hemin and mannitol are put into the mixer to be mixed for 0.5-1.5 hours according to same-size scale-up method, and they are crashed and filtered with 100 items sift and they are diluted, then they are blended with folacin, and carries pelleting or making capsule, pill and so on, it can prevent the foetus neural tube abnormality and it can prevent the pregnant woman iron deficiency anemia.

本发明提供一种预防胎儿神经管畸形和孕妇缺铁性贫血病的组合物及其制备方法，它包括活性成分和载体，其中活性成分主要由重量比为1∶25的叶酸与氯高铁血红素组成，用量为：叶酸0.2～0.6mg、氯高铁血红素5～15mg，载体为甘露醇150～300g，并按以下步骤和次序配制而成：氯高铁血红素与甘露醇按等量递加法放置在混合机中混合0.5～1.5小时，一起粉碎过100目筛制成稀释散后，再与叶酸混合均匀，直接压片或者制成胶囊、丸剂等剂型，不仅预防胎儿神经管畸形，而且能够同时预防孕妇缺铁性贫血。

Check that the pressure of the compressed air supply is adequate for the tool by referring to the manufacturer nameplate and the pressure gauge on the supply line.

检查厂商说明检查工具的压缩空气是否充足，检查供应气管道上的压力表，保证过压的危险能正确标识。

I investigate mother that rough hand, there are a print on skin, be that upper pressure comes out , I say that to the mother from the table affirmatively: Did "you get on the Internet a short while ago?"

我侦查妈妈那干净的手，皮肤上有一条印迹，肯定是从桌子上压出来的，我向妈妈说道：&你刚才上过网吗？&

Stacked PIN diodes in parallel and series operate at a hold-off voltage of 8.0 kV,and the dV/dt is promoted from 2.4 kV/ns to 3.2 kV/ns. Delayed breakdown device ; PIN diode ; Delayed breakdown

因此在输入脉冲 dV/dt很快的情况下，二极管会产生很高的过压，这时空间电荷区的电场强度远远大于雪崩击穿的临界场强，电子和空穴的电离率非常高，导致二极管在很短的时间内击穿，这个现象被

For high octane number fuels, it was found that when an additive named as DTBP is added to RON90 and iso-octane, the HCCI operation ranges could remarkably expand to lower temperature and lower engine load.

针对高辛烷值燃料不容易压燃的缺点，本文在RON90燃料和异辛烷中加入一定比例的过氧化二叔丁基，达到了控制高辛烷值燃料着火时刻、提高燃烧效率、降低排放的目的。

Enter a value at "switch off limit maximum "which is lower than the actual value displayed.

在&过压速断&输入一个比实际压力低的值。

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。