direct metal 中文意思是什麼
direct metal
解釋
直接金屬-
The types of the detection equipments and apparatus are over 100, such as x - ray detector, r - ray detector, digital ultrasonic flaw detector, eddy current flaw detector, eddy current flaw detector, magnetic memory metal diagnostic instrument, acoustic emission testing an analyzing system, three - dimensional ultrasonic testing system, microcomuterhydraulic pressureniversal testing machine, metalloscope, portable direct - read spectrograph, have achieved the national advanced technology
擁有各種檢測設備100多套，如射線探傷機、數字式超聲波探傷儀、渦流探傷儀、磁記憶金屬診斷儀、聲發射檢測及分析系統、三維超聲波檢測系統、便攜式直讀光譜儀、微機式液壓萬能試驗機、金相顯微鏡等，達到國內先進水平。 -
The direct chiral separation of ( ? 3 - s ) - bridged racemic metal clusters was performed on cellulose - tris ( 3, 5 - dimethylphenylcarbamate ) chiral stationary phase ( cdmpc - csp )
摘要在自製的塗敷型纖維素三（ 3 ， 5 -二甲基苯基氨基甲酸酯）手性固定相上直接拆分了? 3 - s蓋帽的外消旋四面體金屬簇合物。 -
This paper gives a brief review of four stabilization mechanisms of soc : ( 1 ) recalcitrance of organic carbon compounds, ( 2 ) interactions with metal oxides and soil mineral surfaces, ( 3 ) spatial inaccessibility against decomposers because of micro - aggregate ' s physical protection, and ( 4 ) biological mechanisms, mainly the direct contributions of soil organisms themselves
土壤有機碳的穩定機制主要包括： （ 1 ）有機碳的難降解性； （ 2 ）金屬氧化物和粘土礦物與有機碳的相互作用； （ 3 ）土壤團聚體的物理保護導致的生物與有機碳空間隔離； （ 4 ）土壤生物學機制，主要指土壤生物自身對有機碳穩定性的直接貢獻。 -
Pump touch with the liquid part is the fluorine plastics, but crust is metal stuff, so the pumpbody is enough to support the weight of pipepad and repel mechanically concussion. imd multilevel magnetic force pumps is electrical engine direct link pattern, by centernog prop up, teardown and maintenance is convenient, the structure is tightly, safety and economize energy, one man can put up check - fixing the part inside and replace it easily, consumedly convenient the usual maintain of customers work
泵接觸液體部分是氟塑料，但外殼是金屬材料，故泵體足以承受管道的重量及抵受機械性沖擊。 imd系列磁力泵為電機直聯式，由中間支架支撐，安裝拆卸方便，結構緊湊安全節能，一人便可以輕松的進行內部檢修和零件更換，大大方便了用戶日常的維護保養工作。 -
The perovskite - type metal oxides supports and the corresponding supported pd catalyst were prepared by microwave, and characterized by xrd, sem and used in the direct synthesis of diphenyl carbonate ( dpc )
摘要利用微波法制備了鈣鈦礦型復合氧化物載體及把負載鈣鈦礦型催化劑，用xrd和sem對載體及催化劑進行了表徵，並將微波法制備的催化劑用於一步氧化羰基化合成碳酸二苯酯（ dpc ）實驗。 -
Effect of scanning path on temperature field in direct metal laser sintering process
激光掃描路徑對直接金屬激光燒結溫度場的影響 -
Direct metal forming based on plasma arc welding is a novel rapid prototyping process
摘要基於等離子弧焊的直接金屬成形方法是一種新型的快速成形工藝。 -
A series of experiments were carried out with direct metal laser sintering ( dmls ) for the 316 stainless steel powders
摘要採用直接金屬激光燒結的方法，對316不銹鋼粉末進行了一系列燒結實驗。 -
Examination of the density, strength, hardness and microstructure showed that the mechanical properties and structure of the part made by direct metal forming process are better than that obtained from selective laser sintering process, as good as or even better than castings
對成形件進行的密度、強度和硬度指標測試和金相組織觀察表明：基於弧焊的直接金屬成形件的組織結構和力學性能指標明顯優于選擇性激光燒結工藝成形件，達到或高於鑄造零件。 -
Rapid prototyping technology changed the traditional pattern of product design, which could offer product sample for the designer, reduced design cycle and quicken the schedule of new product design, and it gave the decision - makers visual feeling. ; rp technology provided kinds of molds including resin - boncled mold laminate mold, investment mold and lost foam casting mold and so on for sand casting investment casting and cavityless casting, it could also use direct shell production casting to make pattern dies metal dies die - casting dies injection dies directly, and it could even produce casting products in small scales. the applications of fdm technology in plaster precision casting and the rapid casting technology based on sls technology were introduced, the organic combination between rapid prototyping tecnnology and foundry process, which initiated a new period of rapid manufacturing metal parts, by using advanced new technology alternated traditional foundry industry to make it looked brand - new, thus, the competition of foundry industry would be improved ; rapid prototyping technology offered a rapid economical feasible technical method, common processes of using rapid prototyping technology to produce dies were discussed, in the paper it explored that. the problem of combining rapid prototyping technology with electric arc metal - spraying technology to make metal dies and technics in dies manufacturing of combining rapid prototyping technology with precision casting, rapid tooling based on rapid prototyping, integrated advanced new technology and tradition technology of rapid prototyping manufacture, each superiority were exerted, rapid prototyping technology had been an efficiency measure to rapid update products and develop new product, and to middle -
快速成型技術改變了傳統的產品開發模式，可以為設計者提供產品樣件，縮短設計周期，加快新產品的開發進度，為決策者提供直觀性；快速成型技術迅速提供砂型鑄造、熔模鑄造、實型鑄造用的各種模樣，包括樹脂模、層壓模、熔模和消失模等，還可採用直接制殼鑄造法直接製造熔模鑄造用的壓型、金屬型、壓鑄型、注塑模，甚至直接製造小批量鑄件，介紹了熔積成型技術在石膏型精密鑄造上的應用和基於選擇性激光燒結技術的快速鑄造技術，快速成型技術與鑄造工藝的有機結合，開創了快速製造金屬零件的新階段，對用高新技術改造傳統的鑄造工業，使其面貌煥然一新，增強鑄造行業的競爭能力；快速成型技術為母模的製造提供了一條快速、經濟、可行的技術途徑，討論了利用快速成型技術製造模具的一般工藝方法，探討了將快速成型技術與金屬電弧噴鍍技術結合起來快速製造金屬模具問題，以及快速成型技術與精密鑄造技術相結合的模具製造工藝，基於快速成型製造的快速模具技術，集成了快速成型製造高新技術和傳統技術，發揮各自優勢，已成為產品快速更新換代和新產品開發及中、小批量生產的有效手段之一。 -
The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。 -
With the numerical iteration method we use the hnc integral equations to calculate the direct correlation function c ( r, t, p ) and the total correlation function h ( r, t, p ) in a soft - sphere ionic fluid which something like the system of the alkali - metal salts
我們採用迭代方法用超網鏈積分方程組計算了一種類似於堿金屬鹽的軟球離子液體系統的直接關聯函數c （ （ ? ） ， t ， ）和總關聯函數h （ （ ? ） ， t ， ） 。 -
Nano - alkali metal hydrides and lanthanide hydrides can be prepared easily by the direct hydrogenation catalyzed by ticl4 in tetrahydrofunan ( thf ) under normal pressure. lanthanide powder of nanometric size in a finely dispersed active form was generated by the thermal decomposition of organolanthanide in vacuum. 1
本文應用絡合催化法，在常溫常壓下，在萘/ ticl4催化體系作用下合成納米尺寸堿金屬氫化物（以nah為代表） 、納米尺寸鑭系金屬氫化物（以smh3為代表）和鑭系金屬有機化合物（以蒽鑭為代表） ，並通過真空熱解鑭系金屬有機化合物得到高分散度的納米尺寸鑭系金屬粉末（以la為代表） ，主要考察如下三個方面的內容。 -
The average abundance distributions of heavy elements in metal - poor stars can provide fairly direct and detailed information on the nucleosynthesis in every stage after the formation of galaxies. furthermore, it can put more accurate constraints on the chemical evolution of neutron - capture elements. the solution to this problem will have important effect on the solution to a series of problems about nuclear astrophysics and the galactic evolution
貧金屬星的中子俘獲元素豐度分佈能提供星系形成后各個階段核合成的較為直接和詳細的信息，並為星系化學演化的研究提供更為準確的約束，這一問題的解決將對核天體物理及星系化學演化的一系列問題的解決產生重要影響。 -
The extremely good high temperature is peace and quiet, can prevent because adopt two pairs of metal piston and high pressure not to gush out, delay advanced high smoke tai wearing and tearing of the engine under the terms that technology cause of spraying etc. and corrode direct effectively, can keep the engine highly clean
極佳的高溫清凈性，可有效防止因採用兩段雙金屬活塞及高壓直噴延遲噴射等先進技術所造成的高煙炱條件下發動機的磨損和腐蝕，可保持發動機高度清潔。 -
" containers and packagings used for food " means products of various materials including paper, bamboo, wood, metal, enamelware, ceramics, plastics, rubber, natural fibres, synthetic fibres and glass that are used to wrap or contain food, as well as paints or coatings that come in direct contact with food
食品容器、包裝材料：指包裝、盛放食品用的紙、竹、木、金屬、陶瓷、搪料、橡膠、天然纖維、化學纖維、玻璃等製品和接觸食品的塗料。 -
Ii. the direct diamond - diamond bonding between granules in domestic pdcs are poor. accordingly more catalyst metal are left over, this weaken the strength of the whole pdc
國內聚晶金剛石層中晶粒之間直接連接的共價健（ c - c健）比例少，催化劑金屬含量過高，導致宏觀強度低，應採取如下措施： 1 -
It suitable for it demand it use api ch - 4 grade the the oils one high speed load, the turbine pressurization not high, in cold, four stroke pairs of piston gushing out type diesel engine direct not metal of two sections
用途適用於要求使用api ch - 4級油的高速高負荷渦輪增壓中冷四沖程兩段雙金屬活塞直噴式柴油發動機。 -
2. reduce the content of catalyst metal to prevent it from blocking the direct bonding of diamond granules and improve the thermal stability of pdcs
減少催化劑金屬加入量以避免其隔斷金剛石晶粒之間的直接健合，同時提高聚晶的熱穩定性。 -
Concentrations of zn and cd were significantly lower in mycorrhizal plants, but p concentrations did not differ substantially between mycorrhizal and non - mycorrhizal treatments. the results indicate that the higher metal tolerance of mycorrhizal plants was due to the direct involvement of the mycorrhizal fungi in plant tolerance to heavy metals rather than a p - mediated nutritional effect
通過盆栽試驗研究了接種外生菌根真菌對油松幼苗耐重金屬能力的影響，結果表明在重金屬zn和cd污染條件下，點柄乳牛肝菌侵染油松后，顯著改善了植株生長狀況，大幅度降低了植株體內zn和cd含量，而菌根與非菌根處理植株磷營養差異不大。
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