高压

The accident of a tube of a high alcohol hydrogenation reactor in chemical plant was analyzed,and the reason of the accident and design a new structure of the reactor tube was found out The usage in a chemical plant shows that the design of the new structure is vali

对化工厂原有高压醇加氢反应管经常出现的故障进行了分析，找出引起故障的原因，设计出一种新型的高压醇加氢反应管，经化工厂使用，证明这种新型的高压醇加氢反应管是可行

6GPa, 1000～1200℃, 2-48h. It is noted that according to the mechanism proposed above, it is own to the local high pressure and local high temperature coaction which making the SiO〓 surface as high energy state, therefore coesite synthesized in the lower conditions.

值得特别指出的，如上面有关高能机械球磨作用机制的研究中知悉，在高能球磨碰撞过程中可产生4～6GPa的局部高压和200～600℃的局部高温，正是局部高压和高温使得SiO〓形成表面高能态的非晶原材料，从而可以比通常低很多的高压高温条件合成出柯石英。

The impacts of the ultra high voltage AC/DC grid on Fujian power grid are analyzed in this paper. The security and stability of Fujian power grid and the interactions among the AC and DC system are studied under the single/double faults of EHV AC transmission lines and monopolar/bipolar block faults of EHVDC system near converter station.

中文摘要：分析了交、直流特高压电网对福建电网安全稳定的影响，研究了特高压交流电网、特高压直流系统发生故障时福建电网的安全稳定性以及受端换流站附近交流电网单一或严重故障对直流系统的影响及系统安全稳定水平。

METHODS: Twentyfour patients with congenital heart defects were divided into 3 groups: mild pulmonary hypertension group(n=8), moderate or severe pulmonary hypertension group(n=9), and nonpulmonary hypertension group(n=7). NOS mRNA expression was detected in lung tissues with reverse transcriptase polymerase chain reaction.

将24例左向右分流先天性心脏病患者分为三组：轻度肺动脉高压8例，中重度肺动脉高压9例和无肺动脉高压7例，应用逆转录多聚酶链式反应检测患者肺组织中NOS mRNA的表达。

Objective To sum up the etiology and the experience on diagnosis and treatment for pancreatogenic portal hypertension complicated with hemorrhage of upper digestive tract in severe acute pancreatitis.

胰源性门静脉高压症是一种因脾静脉回流受阻所致的&区域性门静脉高压症&，在重症急性胰腺炎后期合并消化道出血中，胰源性门静脉高压是较少见和容易忽视的病因。

prehepatic portal hypertension has specialties clinicalcharacter and shunt surgery is the best therapy.

肝前型门脉高压有其独特的临床特征，与肝硬化门脉高压在临床表现和治疗上都有许多不同，分流手术是治疗肝前型门脉高压的最佳方法。

This operation is suitable for the following portal hypertension: simple occlusion of hepatic vein (a pathological type of Budd-Chiari syndrome)thrombosis in portal vein or prehepatic portal hypertension due to cavernous transformation; intrahepatic portal hypertension with rebleeding after treatment of splenectomy or without operation, and the patients with liver function in Child A or B class.

本手术主要适应于以下原因引起的门静脉高压：①单纯化肝静脉闭塞(布-加综合征的一种病理类型)；②门静脉主干血栓形成成海绵样变性引起的肝前性门静脉高压；③肝内型门静脉高压行断流术后再发出血或未行手术，肝功能为Child A和B级者。

High-pressure liquefaction of a sawdust in syngas and hydrogen with tetralin as solvent was performed in an autoclave,and the effects of temperature,reaction time and initial reaction pressure on the sawdust high-pressure liquefaction were studied by testing the distribution and characteristic of liquefaction products.

在小型高压反应釜中以四氢萘为溶剂，氢气和合成气为液化反应气，通过对不同液化条件下所得液化产物的收率及性质分析，考察了不同液化条件(反应温度、反应时间、反应气压力)对锯屑高压液化行为的影响；同时在相同液化条件下，通过液化产物收率和性质的分析，考察了气氛对锯屑高压液化行为的影响，探讨了用合成气代替氢气进行液化的可行性。

But this does not mean that all the present uncompacted belt s are now still high pressure or superpressure belts.

欠压实带是因地层具异常高压形成的，但这并不能完全代表现今欠压实带就一定为高压带，因为古高压在地质历史中，可能因诸多原因己释放。

Series 912HP High Pressure Hose Drop Backflow Preventers are specifically made for isolation protection on high pressure plumbing supply lines, such as high pressure hose drops which are used for the washdown of equipment and facilities.

系列912HP高压低垂软管防回流阀专用于对高压供应管道提供隔离保护，如用于设备和设施冲洗的高压低垂软管。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。