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- A pitch mesophase can be prepared from petroleum pitch andcoal tar pitch. 從石油瀝青和煤瀝青中制取瀝青中間相物質(zhì)。
- Dextrorotary ammonium tartrate can be prepared from by product tartar produced in grape wine factory. 酒石酸氫銨和氨水反應并經(jīng)脫色、脫水可制得最終產(chǎn)品右旋酒石酸銨。
- It or its corresponding nucleoside or nucleotide may be prepared from DNA by selective techniques of hydrolysis. 借著(zhù)水解的挑選技術(shù),可從去氧核糖核酸制備胞嘧啶或相關(guān)的核或核酸。
- High-class tonics are prepared from superior materials. 上等補晶，選材精良。
- Biodiesel can be prepared from natural oil, waste oil and vegetable oil soapstock. 動(dòng)植物油、廢棄食用油和植物油精煉皂腳都可以作為原料來(lái)制備生物柴油。
- Wood adhesive can be prepared from sulfate pulping black liquid by activating and reinforcing. 硫酸鹽紙漿黑液經(jīng)活化、增強后可用作木材膠粘劑。
- The other method was that maize oil was prepared from lees. 二是從蒸餾后的酒糟(DDGS)中用溶劑浸出提取玉米毛油,毛油經(jīng)進(jìn)一步精煉得精制玉米油或一級玉米油。
- Dietary fiber was prepared from ryegrass by using alcohol. 以黑麥草殘渣為原料,采用乙醇提取制備膳食纖維。
- Dihydroxybenzaldehyde was prepared from vanillin by demethylation. 研究了香蘭素經(jīng)脫甲基制備3,4二羥基苯甲醛的反應。
- Autotrophic mutants were prepared from six different stocks of a special group. 自養突變體是從一個(gè)特別類(lèi)群的6個(gè)不同的原種菌系制備的。
- Wood flour/PVC composite (WPC) was prepared from PVC resin and wood flour. 采用聚氯乙烯樹(shù)脂和木粉制得PVC/木粉復合材料。
- Methods:Rupatadine was prepared from loratadine via hydrolysis and alkylation. 方法:以氯雷他定為原料,經(jīng)水解、烷基化2步反應合成盧帕他定。
- Potassium iron blue of high quality was prepared from pyrite cinders. 以硫鐵礦燒渣為原料制備鉀鐵藍。
- G-201 and G-202 desulfurizer are prepared from a large scheme design and tests. 經(jīng)大量的配方設計及試驗，成功篩選出G-201及G-202兩種脫硫劑。
- Autotrophic mutants were prepared from six different stocks of the homoictic group. 自養突變體是從同株同核融合類(lèi)群的6個(gè)不同的原種菌系制備的。
- Hope for the best but be prepared for the worst. 抱樂(lè )觀(guān)的希望，作最壞的準備。
- Glycol glucoside was prepared from glucose and ethylene glycol in the presence of acid catalyst. 在酸性催化劑下,由葡萄糖和乙二醇經(jīng)縮醛化反應制備了乙二醇葡糖苷。
- Protoplasted monokapyon (PM) were prepared from Lentinus edodes strains Jingxuan and Wuxiang, respectively, intercross process were put in practice. 摘要以香菇菌株精選和武香作為親本制備單核原生質(zhì)體，將兩個(gè)親本的單核原生質(zhì)體進(jìn)行一一雜交。
- Be prepared for anything to happen. 準備好對付任何可能發(fā)生的事件。
- Brominated pentabromobenzyl was prepared from pentabrominated toluene by using bromine/peroxides method and NBS method. 采用溴/過(guò)氧化物法和NBS法對五溴甲苯進(jìn)行芐位溴化,合成了五溴芐基溴,比較了兩種方法的優(yōu)缺點(diǎn)。
