英语人>网络例句>产物 相关的搜索结果
网络例句

产物

与 产物 相关的网络例句 [注:此内容来源于网络,仅供参考]

While 70% of the post-flower assimilation product was used in the pod and seed forming and the other 30% of end product in pods and seeds came from the redistribution of preflowering assimilati...

供试的人工调节剂对大豆各期同化产物参与终产物形成的比率,可在10—12%的范围内发挥调节作用。

The reaction with propargyl sulfide gave a mixture of allenic sulfide and furan.The former is the [2,3]-sigmatropic rearrangement product,while the latter is derived from the furt...

同样条件下与炔丙基硫醚的反应则生成[2,3]-σ重排产物联烯和呋喃衍生物,后者是联烯进一步在Ru作用下重排的产物

The method comprises heating up the lactic acid solution to gasify at 150-200 degree C, mixing the obtained mixed vapour of lactic acid and water with the carrier gas, entering into gas-solid catalytic reactor to get the reaction product gas by the action of a modified Y zeolite molecular sieve catalytic agent and dewatering after heating up the mixed gas to 200-450 degree C, obtaining the propenoic acid solution through gas-liquid dissociation after cooling the reaction product gas, obtaining coarse propenoic acid products form the propenoic acid solution by gas stripping, azeotropic distillation, extraction and rectification in turns.

其特征在于将乳酸水溶液加热至150~200℃气化得到的乳酸-水混合蒸气与载气混合,将混合后的气体继续加热到200~450℃后进入气-固相催化反应器中经改性Y沸石分子筛催化剂作用脱水得反应产物气体,反应产物气体冷却后经气液分离得到丙烯酸溶液,丙烯酸溶液再依次经过气提、共沸蒸馏或萃取、精馏得到粗丙烯酸产品。

Methyl 6-acylnaphthalene from 2-methylnaphthalene was synthesized via acylation using acetic anhydride and propionyl chloride as the acylating agents with catalyst aluminum trichloride in homogeneous liquid phase system.

为制备重要的化合物2-甲基6-酰基萘,提高酰化产物的收率和纯度,以2-甲基萘为原料,分别研究了乙酸酐和丙酰氯为酰化剂时的酰化反应,对酰化反应的产物进行了GC、FT-IR和GC-MS表征;对酰化反应的影响因素进行了研究。

On the basis of an integrated analysis of the geochemical features of these volcanic rock associations,this paper concludes that thebasalts originated mainly from interaction between mantle-derived magma and low-crustal materials, and rhyolitic volcanic rocks resulted from thermal and chemical interaction between basaltic magma and the upper part of crustal materials.Basalts and rhyolites in different cycles have different source regions,and they are products of multiperiodic pulsive layer partial melting.

根据对火山岩地球化学特征的综合分析表明,玄武岩主要为幔源岩浆与下部地壳岩石相互作用的产物,而流纹岩则为玄武岩浆与上部地壳物质进行热及成分交换的结果,不同旋回的玄武岩和流纹岩有不同的源区,为多次脉动分层部分熔融的产物

The conditions for esterifying konjac KGM were optimized and the natural,macromolecular,organic air purificant for adsorbing SO2 and bacteriostasis in air was obtained.

研究结果表明:当采用苯甲酸为魔芋葡甘聚糖酯化改性剂时,改性产物对空气中的SO2吸附效果和抑菌作用效果优于使用醋酸和没食子酸的改性产物

The results of batch experiments showed that the anaerobic biodegradation kinetics of 2-CNB and 4-CNB by granular sludge were follwed by first-order reaction. The nitro groups of 2-CNB and 4-CNB were more easily attacked by electron than chlorines and they were reductively biotransformed to amino groups under anaerobic conditions. The acclimated anaerobic granular sludge, which could dechlorinate 4-chloroanline to aniline, showed that it had the ability of para-dechlorinating. The anaerobic biodegradating on pathway of 2-CNB and 4-CNB were suggested as follows:AbstractIn ZVI(zero-valent iron, Fe0)-reduction system, the nitro groups of 2-CNB and 4-CNB were reductively transformed to amino groups.

2分批试验结果证明,颗粒污泥降解2-CNB和4-CNB遵循一级动力学,在厌氧条件下,CNB发生序列的硝基还原与脱氯作用,苯环上的硝基比氯原子更容易受到亲电子攻击,发生还原反应生成氨基;所获得的颗粒污泥具有对位脱氯活性,可使4-CA进一步脱氯形成苯胺。2-CNB和4-CNB厌氧降解的建议性途径为: ZVI(Zero-valentiron)对2-CNB和4-CNB的作用主要是将苯环上的硝基还原为氨基;在ZVI与污泥共还原转化体系中,ZVI对氯代硝基苯的硝基转化具有一定的促进作用,但因ZVI对中间产物的吸附特性,终产物形成速率趋慢。

A higher yield(about 80%) can be obtained when 0.20-0.25 mol/1 of TUPMA is refluxed in 0.5 mol/l of NaOH solution at 75℃for 8h.

产物的熔点为165.3℃,MS、~1HNMR和IR综合分析的结果确认,该产物的结构是4-二(1,2,4-三唑-5-硫酮基)-1,5-苯二甲酸。

To express chicken osteoprotegerin in Pichia pastoris and determine its inhibitive effects on mature osteoclastic bone resorptive function in vitro. The chOPG cDNA encoding for 382 amino acid without signal peptice was subcloned into Pichia pastoris expression vector pPICZα-A. The constructed plasmid was transformed into yeast X-33 by electroporation. The recombinant transformants were selected by Zeocin. Induced by the addition of methanol every 24 hours, the product analyzed by SDS-PAGE was sized about 43kDa and 53kDa at a yield of 200mg per litter of culture. The result of Western blotting indicated that the recombinant protein had specific antigenicity mainly owing to heterogeneous glycosylation.

为了在毕赤酵母中分泌表达鸡骨保护素(osteoprotegerin,OPG),采用DNA重组技术将chOPG成熟肽cDNA片段插入毕赤酵母表达载体pPICZα-A中,以电穿孔法转化酵母X-33,用Zeocin 平板筛选重组子,经甲醇诱导表达后, SDS-PAGE 和免疫印迹分析表达产物,由于糖基化不同,表达产物有两种,其相对分子量分别为43kDa和53kDa,表达量约为200mg/L,经Western印迹验证,有较好的抗原性。

The stable polymers was formed through thechemical crosslinking reaction between the hydrolysates of semicellulose and the decompositionproducts of lignin.

半纤维素水解产物与木素的降解产物发生化学交联反应,形成了稳定性极高的体型聚合物,降低了木材的吸湿性,使得压缩变形得以固定,这应该是压缩变形固定的主要原因。

第50/100页 首页 < ... 46 47 48 49 50 51 52 53 54 ... > 尾页
推荐网络例句

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力