查询词典 high pressure

For the first time we synthesized nanoscale metal hydrides of lanthanum, neodymium, samarium, dysprosium, and ytterbium with high efficiency under mild condition by complexometric catalysis instead of traditional preparation at high temperature and high pressure. It is for the first time that we synthesized lanthanide organic compounds with catalysts or initiating agents at atmosphere and ambient temperature,and some of them are new compounds. Nanometric lanthanide metal powders are prepared by thermal decomposition of the compounds in vacuum. Differently from the traditional method, size of the products prepared by our method is less than 40nm, and the activity of the reaction is very high. They are pyrophoric at atmosphere. They can make some reactions without activity or low activity show extremely high activity .We investigated influent regulations of methods, conditions to scale and special surface.

我们首次成功地用络合催化等方法取代需在高温高压下进行的传统方法，在温和条件下高效率地合成出纳米尺寸镧、钕、钐、镝、镱的金属氢化物；首次在常压常温的条件下，通过催化、引发等方法合成镧系金属有机化合物，再将其真空热分解成功地制备了纳米尺寸的镧、钕、钐、镝、镱等金属粉末；与传统方法不同，这些方法得到的产品基本颗粒尺寸小于 40 nm，遇到空气燃烧，具有极高的化学反应活性，使原来活性很低甚至观察不到活性的反应大幅度提高反应速率和产率；考察了制备方法、制备条件等因素对晶粒尺寸、比表面积大小等的影响规律。

Energy savings can be achieved in this distillation system by running one of the columns at a higher pressure and integrating the condenser of the high-pressure column with the reboiler of the low-pressure column.

它的基本原理是由一个高压塔和一个低压塔来构成一个精馏系统，高压塔的塔顶蒸汽作为低压塔的塔釜供热，以节省能耗。

Accordance with volume of biogas actually using requirement so that actualize supporting facilities, it can keep the pressure contant of biogas using for long time, the floating cover upside of body be pressurized, when the floating cover biogas digester fermenting to produce biogas will drive the soft PVC floating cover rising up with biogas storage, if user make use of biogas in case of biogas stove which the biogas pressure will be drop below in conjunction with floating cover will synchronous drop, when the floating cover has full of biogas which supernumerary of biogas automatic overflow to outside from bottom side of floating cover, it can not be appear with over high pressure thereby cause the tympanites of floating cove burst or biogas pipe burst and never has such phenomenon happen, the floating cove type biogas digester has reliable safe security.

根据沼气实际使用需求用量来做相应配置，可以保持长期在恒压状态沼气气压，浮罩顶部是密封的，当浮罩式沼气池发酵时所产生的沼气使浮罩上升并储存沼气，如果用户在用沼气炉灶用气时沼气压力将随之下降的同时浮罩也随着气压的下降而降低，当浮罩充满沼气时多余的沼气会自动从浮罩底部溢出，不会出现因气压过高造成鼓池、爆裂或爆管现象发生。浮罩式沼气池具有非常可靠的安全保障。

It shows that the Taiwan topography influence on the movement and the central air pressure is salience. The topography force influence on the typhonic central intensity and unsymmertrical structure is very evident. The Taiwan topography is the primary reason for the low pressure in the windward mountain and high pressure in the leeward mountain. The topography is the primary reason for the peripheral precipitation reinfor4ce of the typhoon.

试验结果表明：台湾岛地形对台风&泰利&的移动路径和中心气压的影响不显著；地形的强迫作用对台风涡度场的中心强度和非对称结构有明显的影响；台湾岛地形是形成迎风坡诱生低压和背风坡诱生高压的主要因子；地形是台风外围降水加强的主要原因。

My company produces the machine selling cement building a piece , hydraulic pressure shakes brick machine , full-automatic building-block machine , the concrete builds piece molding machine , disheartened baking-free brick of fine coal machine , pressure ball machine , Ramon dawdles away , Ramon flour mill , Ramon machine , R type Ramon dawdle away , make grit machine, ball mill, crusher, building stones production line equipment, broken stone machine, wood powder machine, oscillating screen, ring hammer dyadic crusher, clear grit machine, drying machinery, high pressure Ramon super-thin flour mill, Machinery equipment such as ball mill accessory , the crusher striking back against style , honeycomb coal ball machine.

我公司生产销售水泥砌块机、液压振动砖机、全自动空心砌块机、混凝土砌块成型机、粉煤灰免烧砖机、制砖机、压砖机、挤砖机、振式制砖机、多功能制砖机、液压式制砖机、花砖机、路面花砖机、彩色花砖机、盲人道花砖机，压球机、蜂窝煤球机、雷蒙磨、雷蒙磨粉机、雷蒙机、R型雷蒙磨、制砂机、球磨机、破碎机、石料生产线设备、破石机、木粉机、振动筛、环锤式破碎机、洗砂机、烘干机、高压雷蒙超细磨粉机、球磨机配件、反击式破碎机，粮油机械、蔬菜脱水成套设备、玉米糁加工机械、粗粮细加工、玉米精加工微型机组、玉米高精粉微型机组等机械设备。

This paper introduces developing and tendency of marine low-pressure fire extinguishing system,gives comparison of advantages and shortages between high pressure and low-pressure CO 2 fire-extinguishing systems ,which will become reference to accept this new technique.

文章全面介绍了新兴的低压CO2 灭火系统的发展情况和发展趋势，比较了高压CO2 灭火系统和低压CO2 灭火系统的优缺点，为国内同行将来接触这种新技术提供借鉴。

The oscillation performance of jet, as oscillation frequency, is the essential data for designing the fluidic device, which is also the key factor that influence the coupling effect of fluidic device and receiving tube. This paper does experiment on the oscillation availability and frequency of feedback jet-oscillation gas wave refrigeration. As a conclusion, the jet oscillates only in a certain range of geometrical sizes and operating conditions. Under the condition of high pressure ratio, the frequency of the jet"s oscillation is only affected by the feedback tube"s length and chamber remarkably. Under the condition of low pressure ratio, the frequency descends with rise of the pressure ratio.

本文将跨音速正反馈射流振荡器与接受管耦合，对耦合后的射流振荡气波制冷机的可振性、振荡频率以及它们的影响因素作了实验研究，得出如下结论：射流只在一定的操作条件和几何结构尺寸范围内才能稳定振荡；射流的振荡频率在较高压比下只受反馈管长和反馈管容腔大小的显著影响，在小压比下随压比的增大而增加；其它结构尺寸和操作条件只影响可振性。

High-pressure gas shell test should be carried out after hydraulic test case, and have appropriate security measures, the gas shell test pressure should be under 100 (30 ℃) the maximum allowable pressure of 110% or by order of the provisions of , does not allow a visible leak.

高压气体壳体试验应在液压壳体试验之后进行，并要有相应的安全防护措施，气体壳体试验压力应是100下(30℃)时最大许用压力的110％或按定单中的规定，不允许有可见的泄漏。

As discussed here, it is differences in pressure that are dangerous to organisms, so they will experience no significant problems as long as the liquid in their body is at equally high pressure as the surrounding water, and as long as they have no gas-filled body cavities at lower pressure like humans do.

就这里讨论的而言，是压力的差异在威胁这些生物，所以只要它们体内的液体和周围水域处在同样的高压，只要它们没有如同人类的充满气体的低压体腔，那么它们就不会遇到太大的麻烦。

Pressure induced amorphous transition of LiB 3O 5 has been investigated by using in situ high pressure X ray powder diffraction and energy dispersive X ray diffraction with synchrotron radiation at the pressure up to 45 1GPa.

采用X射线粉末衍射和同步辐射能散X射线衍射技术，对LiB3O5晶体进行了压致非晶化相变的研究，压力达45.1GPa。

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％。