試劑級 的英文怎麼說
中文拼音 [shìjìjí]
試劑級
英文
reagent grade-
Wood preservatives. boric acid. specifications and tests
木材防腐劑.工業級硼酸.規范和試驗Unless reagent grade sucrose is available use cane sugar.
如果沒有試劑級的蔗糖，可以用甘蔗糖。With molecular sieve bed method to produce reagent grade gb 678 - 2002 ethyl alcohol
分子篩床法生產試劑級無水酒精In this paper, the effects of fly ash, cement, lime, fine sands, foam agent, w / c ratio and additional agent on foamed concrete were studied by experiments, the best combination ratio of fly ash foamed concrete whose density varies from 551kg / m3 to 650kg / m3 was obtained through orthogonal test design, the foam agent quantity and the fly ash quantity effect the fly ash foamed concrete greatly, so the author selected them as independents to establish duality linear regression equations, the equations were quite ideal through the test of model summary r. moreover, the author also did some experiments about the water resistance of magnesium oxychloride cement fly ash foamed concrete, the outcome showed that phosphoric acid has good effect on water resistance, and its appropriate quantity was found
本文通過試驗研究了粉煤灰、水泥、石灰、細砂、發泡液、水灰比及外加劑對粉煤灰發泡混凝土性能的影響，採用正交設計試驗方法得出了600級粉煤灰發泡混凝土的最佳配合比，同時發現發泡液和粉煤灰摻量對發泡混凝土的影響最為顯著，因此，以二者為自變量建立了二元線性回歸方程，通過全相關系數的檢驗發現方程較為理想。此外，還對氯氧鎂水泥基粉煤灰發泡混凝土的耐水性進行了相關實驗，發現磷酸有較好的耐水性效果，同時找到了其合適的摻量范圍。Test research of separating coarse ilmenite with zy collector
捕收劑分選粗粒級鈦鐵礦的試驗研究Ultrapur is the guaranteed ultra - pure class reagent that meets the need for superior trace analysis to ppb, ppt detection limits and beyond
Kanto taiwan corp . utrapur為超高純度級之試劑，適用於超微量之分析，可達到或超越ppb ppt級之偵測極限。By force of testing the performance of prepared tricalcium phosphate ceramic, this paper briefly analysis the effect of the proportion and granule degree relation match of the aggregate and the pore - making agent on the performance of p - tcp bioceramics in the preparation of raw materials
通過對制備出樣品的性能測試，本文簡要討論了骨料與成孔劑的顆粒度級配及兩者的比例關系對生物陶瓷的性能的影響。We have prepared a series of neodymium binary / ternary complexes, such as nd ( acac ) 3 ' 2h2o, nd ( tfa ) 3 ' 2h2o, nd ( hfa ) 3 ' 2h2o, nd ( dbm ) 3 ' h2o, nd ( acac ) 3phen, nd ( tfa ) 3phen, nd ( hfa ) 3phen, nd ( dbm ) 3phen, nd ( tta ) 3 ( tppo ) 2, nd ( hfa ) 3 ( tppo ) 2, nd ( acac ) 4hpy, nd ( tta ) 4hpy and ndq3. the effects of organic ligands, synergistic coordination agents and different substitution groups for - diketones on effective line width and photoluminescence intensity of neodymium complexes were investigated. the photoluminescence spectra indicate that synergistic coordination agents can shield neodymium ion and impede water molecules penetrating into inner coordination shell to satisfy large coordination number of nd3 + during hydrous synthesis process, so the luminescence intensity of neodymium ternary complexes is stronger than that of neodymium binary complexes
發光光譜研究表明，由於協同試劑的參與，屏蔽了水分子參與配位，降低了羥基（ oh ）對釹離子激發態能級~ 4f _ （ 3 2 ）的猝滅，三元配合物的熒光強度均比二元配合物強，其中配合物nd （ tta ） _ 3 （ tppo ） _ 2在1340nm處的熒光強度最強，適合作為摻雜的光學活性物質，來制備有源光波導材料；在有水工藝條件下，單純地氟化配體未必能提高釹配合物的近紅外發光性能。This paper unfolds engineering disposition and theoretical research of negative temperature high performance concrete ( nthpc ) with the damage of many factors motivation, the project background based on qing - zang railway engineering, which is one of four - emphasized engineering during the tenth five - plan. due to the difference of environment of construction and service between nthpc and ordinary concrete, and therefore durability of nthpc is required to higher level. at a first, nthpc must avoid frozen damage at early age and possess anti - freezing property at later period, in order to meet engineering practicable application need, and this are two emphasized and difficult problems, as for nthpc ; by means of mechanism analysis about deicing - agent ingredient and anti - freezing at early period, adopting composite technique routine of mineral addition + anti - freezing element + water - reducer4 - air - entraining + anti - erosion of steel component etc, based on orthogonal experimental approach, fd - 1 composite functional admixtu re was manufactured, which has more property and orientation on qing - zang railway
負溫混凝土由於和普通混凝土在施工環境及服役環境上存在的差異，因此表現為比普通混凝土更為較高的耐久性要求；負溫混凝土首先要避免早期的凍害以及具備長期抗凍性能，才能夠滿足工程實際應用的要求，這也是負溫混凝土必須解決的兩大技術關鍵；通過對目前常用防凍劑組分作用機理的分析研究及混凝土早期防凍機理探討，採用礦物外加劑+防凍組分+高效減水劑+引氣+阻銹組分功能復合的技術路線，通過正交試驗設計復配了適應青藏鐵路工程要求的專用多功能復合型外加劑fd - 1 ；並在此基礎上配製不同等級負溫高性能混凝土，開展一系列包括硫酸鹽侵蝕、氯離子滲透、抗凍融循環、收縮及耐磨性等耐久性能研究；通過對fd - 1組分和摻量的調整，優化負溫混凝土在施工特性、力學指標和耐久性三個方面的兼容、協調性。Because the best grade limits does not vary with material property, firstly, we can confine material grade to the best grade limits when doing subbase mixture design, secondly, after systematic temperature contraction test, aridity contraction test and compressive strength correction test, we can determine the best cement percentage which has the best crack resistance property
因為最佳級配范圍是與粒料的粒徑大小有關的，所以在基層材料配合比設計時可首先將材料級配限制在最佳級配范圍以內，然後通過系統的溫縮、干縮性能試驗以及抗壓強度校核試驗，最終確定抗裂性較好的合理水泥劑量。The strengths of high volume fly ash mortars of different curing time, which are mixed with two kinds of low - quality fly ash, and different kinds and quantities of activators, are examined. and the ph values of their fly ash mortars are examined. the activation mechanism of fly ash and the factors influencing " enhancing - calcium " are analyzed and discussed
測定了由兩種級粉煤灰配製的高摻量粉煤灰水泥漿體在不同的激發劑種類與摻量情況下各相應齡期的抗折、抗壓強度，並對其中幾種粉煤灰水泥漿體各相應齡期的ph值進行測試，對粉煤灰活化機理和影響粉煤灰「增鈣」的因素進行分析與探討。There are more than 20 engineers and senior engineers in the technical center, among whom there are 3 doctors and 6 masters. the domestic first - class testing workshop, experiment facility and test manufacture workshop are collocated in the company, which can be used for the research and development of motorcycle exhaust catalyst, environmental catalyst, catalytic converter technology, etc
技術中心擁有二十多名工程師和高級工程師，其中博士3人、碩士6人，公司配置了國內一流的專業檢測、試驗設施和中試生產車間，可以從事各類尾氣凈化催化劑、環保催化劑、催化轉化系統技術等的研發。Since there are more things in the bud tissue of the male flower, such as phenolic compounds, polysacchrides, proteins and some other secondary metabolites, three methods used to isolate rna are tested in this assay, which are the enzyme digesting methods of ctab, ctab - dna and sds - dna
克服了常規方法和試劑盒無法提取出富含酚類化合物、多糖和一些尚無法確定的次級代謝產物的白樺花芽組織rna的障礙，提出了3種白樺雄花芽組織rna的提取方法： ctab 、 ctab - dna酶消化法和sds - dna酶消化法。About mixture rate of calcium carbide dust stabilization and calcium carbide dust s mixing dose, controlling methodand construct technics, we conduct large number of indoor tests and outdoor tests and educe scientific datas and methods
對于電石灰穩定土、電石灰二灰土和電石灰二灰穩定級配碎石的配合比以及電石灰的摻和劑量、控制方法、施工操作工藝等都做了大量的室內、室外試驗，得出比較科學的數據和方法。Abstract : the primary treatment of wastewater could be strengthened by pretreatment of physico - chemical process and a pilot plant research was conducted to treat the combined wastewater in shanghai
文摘:介紹了污水物化法強化一級處理的特點及用於上海合流污水的中試研究，分析了單獨投加鐵鹽、鋁鹽以及它們同有機高分子絮凝劑復配使用的處理效果。Nuclear particle track - etched anti - counterfeit marking is a new weapon against fake products. the mark is manufactured by intricate high technology in state - controlled sensitive nuclear facilities which ensures that the mark can not be copied. the pattern of the mark is characterized by its permeability, and can be distinguished from fakes by using a transparent liquid ( e. g. water ), colored pen or chemical reagent. the technique has passed the official health safety examination and poses no danger of nuclear irradiation
用核粒子照射塑料薄膜形成徑跡，再經化學試劑蝕刻和成像技術，得到由微米級微孔組成的圖案.這種圖案具有物質透過特性.用這種方法生產的核徑跡防偽標志，具備核尖端技術不易擴散，製作設備不易得到，產品用其他方法難以偽造，防偽識別簡單、快速、可靠等特點.此種標志已經通過放射性安全檢測，可以用於各種商品（包括食品）的包裝The quantity of each impure element is at ppt level, which offers the most superior reagent in purity on the market
每一不純元素的量均在ppt之等級，為市面上最高純度之試劑。Petroleum chemical companies, and r d labs in various industries. our main business scope including : design and construction for new lab, alteration and upgrade of outmoded lab, update and development for lab in existence, production and installation for lab furniture system, design and construction for lab high - purity gas pipeline, design and construction for lab aeration system, laboratory exhaust gas waste residue treatment, laboratory wear material, chemic reagents, laboratory analytic apparatus, and lims laboratory information management system etc.
上海傲仕實業發展有限公司是一家專業從事實驗室系統工程的公司，多年來，我們一直致力於國內外科研單位大專院校醫藥石油化工電子等行業的實驗室建設公司涉及的主要業務范圍包括：新建實驗室的設計與施工陳舊實驗室的改造與升級現有實驗室的更新與拓展實驗室傢具系統的生產與安裝實驗室高純氣體管路的設計與施工實驗室通風系統的設計與施工實驗室廢氣廢液的處理實驗室耗材化學試劑實驗室儀器及實驗室信息管理系統lims等，公司擁有中高級工程師專家技術顧問設計師28名及專業的施工隊伍，從咨詢設計到施工為客戶提供一套完善的售前售後一站式服務體系，解決實驗室設計和施工當中因不同專業的而涉及到的各種問題Selective oxidation of secondary alcohols by halogen - based oxidants
含鹵族元素的試劑對二級醇的選擇性氧化Potassium iodide reagent grade
試劑級碘化鉀分享友人