The differences between high pressure spray, low pressure spray and high pressure pouring equipment for rigid polyurethane foam are simply introduced.
对用于硬质聚氨酯泡沫塑料的高、低压喷涂设备及高压灌注设备作了简单的比较和介绍。
The cause for leaking in tunnels and application of high pressure pouring machine in Shanghai Subway line2a re intro-duced. And comparison between old and new construction methods is made.
介绍了隧道漏水成因，以及高压灌机在上海地铁明珠二号线堵漏工程中的应用情况和新旧工法的对比。
Pouring out troubles to friends is a good way of easing off pressure.
向朋友倾诉烦恼是减轻压力的一个好方式。
The results indicated that there exists obvious gas gap in molten iron flowing front, and the pressure in gas gap with EPS pattern during vacuum pouring is less than 1 a tm.
试验结果表明，铸铁件流动前沿不仅存在明显的气隙，而且采用聚苯乙烯模样材料，负压下浇注时，其气隙压力低于1个大气压。
Rituals like confessing can relieve the pressure of one's mind by pouring out what bothers him deep inside.
例如惭悔的仪式，能借由倾诉一个人内心深处烦恼的事情来减轻压力。
Influence of pressure applied on the mold after pouring on the surface status and mechanical properties of aluminum castings in lost foam casting is investigated.
试验研究了浇注后型腔压力对消失模铸造的铝件表面状态、力学性能影响的趋势。
The penetrating casting can be promoted by properly increasing the pressure applied and pouring temperature, but disturbed if pouring temperature and the pressure applied were too high.
适当提高外加压力和浇注温度有助于渗流过程的进行，但过高的浇注温度和压力对渗流过程都是不利的。
Adapting to pouring system and filling mold water imitation of gravity cast and low pressure cast, the multi-purpose water imitation experiment set is studied.
研制了一套多功能水模拟试验台，适用于重力铸造及低压铸造浇注系统和充型过程的水模拟试验。
At proper pouring temperature and mold temperature, the effect of die casting speed and pressure on microstructure and properties of AM60B alloy has been studied.
固定浇注温度和铸型温度，研究压射速度和压射比压对压铸am 60 B合金组织与性能的影响。
At present, large part of oil field has gone into the medium-latter stage, the pressure of oil-gas well has been lower year after year, pouring and producing contradiction change into intensify.
目前大部分陆上油田已进入中后期开发阶段，油气井压力逐年降低，注采矛盾日益突出。
At present, large part of oil field has gone into the medium-latter stage, the pressure of oil-gas well has been lower year after year, pouring and producing contradiction change into intensify.
目前大部分陆上油田已进入中后期开发阶段，油气井压力逐年降低，注采矛盾日益突出。
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