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- The best performance for MeOH synthesis is C301 catalyst in low pressure. 二甲醚合成中,不同脫水催化劑反應性能不同。
- The improvement of casting process was conducted to eliminate the defects in F3 cylinder cap in low pressure casting. 針對低壓鑄造F3汽缸蓋出現的鑄件缺陷,在鑄造工藝上進(jìn)行了改進(jìn)。
- The weight of the disc/piston is very helpful, especially in low pressure systems. 閥瓣/活塞壓鐵非常有用，特別是對于低壓系統。
- Tapping provided in low pressure side of body to permit convenient, economical attachment of equalizer line. 在閥體的低壓側具有攻絲開(kāi)孔,便于方便、經(jīng)濟的連接平衡管。
- Under the BCS mechanism, we use Anderson model to explain CeCu2Si2 supereon-ductiv critical temperature change with pressure in low pressure range. 在BCS機制下,采用Anderson模型,在低壓區域內,我們解釋了CeCu_2Si_2的超導臨界溫度隨壓力變化的實(shí)驗結果。
- Sand-cleanout with foam fluid can effectively reduce leakage of flushing fluid in low pressure oil wells, without the need of any other LCM materials. 針對漏失井使用水基沖砂洗井液不返液或漏失量大的問(wèn)題,不用添加任何化學(xué)堵漏劑,使用低密度泡沫流體沖砂洗井,可有效地減輕低壓井中沖砂液的漏失。
- Replacement Method and effects of 4# tower wall in low pressure spiral wet gasholder without intermission are introduced and analyzed. 介紹和分析了在不停運的情況下,整體更換低壓螺旋濕式柜4%23塔壁的方法和效果。
- The casing swabbing is often used in low pressure,low permeability and low production rate oilfields for the most economical production. 三低油田常采用套管抽汲方法達到最經(jīng)濟的采油目的。
- This paper deals with the flowing phenomena of liquid metal in lift tube,crucible,and mould cavity in low pressure casting. 分析了低壓鑄造中液態(tài)金屬在升液管、坩堝、型腔中的流動(dòng)現象。
- In this paper,Study of cation exchange column and selection of elution system in low pressure ion chromatography are introduced. 低壓離子色譜為作者提出的新型色譜體系;本文介紹了在低壓離子色譜中專(zhuān)用陽(yáng)離子交換樹(shù)脂的研制及洗脫體系的選擇情況.
- New route for preparation of cystine from hair by means of fast hydrolysis in low pressure and seal conditions has been investigated. 本文研究了以毛發(fā)為原料,通過(guò)低壓密閉快速水解法提取胱氨酸的新途徑;
- Some problems of the orifice flowmeter in use is poin ted out. 指出了孔板流量計在使用中存在的問(wèn)題；
- Firstly, we use the high efficient manual suction pump to keep the fresh food in low pressure status, so that to prevent bacilli living. 第一，利用高效能的手動(dòng)抽氣泵可使保鮮的食物處于低氧低壓狀態(tài)，細菌和微生物不易滋生。
- The young man carved a figure in low relief. 這個(gè)年輕人刻了一座淺浮雕人像。
- The bolt load is calculated to meet the operating load Wm or the gasket seating load Wm, whichever is greater. In low pressure applications the seating load is larger. 需要計算螺栓負載,以符合更大的工作負載Wm或墊圈座負載Wm的需要。在低壓應用中,墊圈座負載更大。
- An ornament carved in low relief. 浮雕裝飾刻在淺浮雕上的裝飾
- Abstract This paper has expounded the important role of liquid surface pressure control system in low pressure and differential pressure diecast to improve castings quality. 在低壓鑄造及差壓鑄造生產(chǎn)過(guò)程中，液面加壓控制系統對提高鑄件的內在質(zhì)量有著(zhù)極為重要的作用。
- In medals and medallions the figures are in low relief. 獎?wù)潞酮勁粕系娜讼裣档透〉瘛?/li>
- In view of flushing fluid enter and contaminate formation during heat-washing paraffin in low pressure well,developed reservoir protector by heat-washing paraffin. 針對地層壓力低,熱洗清蠟時(shí)洗井液大量進(jìn)入地層,嚴重污染油層問(wèn)題,研制了熱洗清蠟油層保護器。
- Being in low spirits; dejected and disheartened. 沮喪的情緒低落的; 垂頭喪氣的和氣餒的
