室温

The results of dimerization of α-methylstyrene indicate that no products were detected at room temperature and it is benefieial to the reaction to raise temperature .

同时，α-甲基苯乙烯的二聚反应表明，室温下不发生反应，提高温度有利于反应进行。

MeOH system at rt for 25min～60min, which gave vicinal diol in 41%～97% yield.

MeOH体系中反应，室温下 2 5min～ 60min内得到 41 %～ 97%的偶联产物邻二醇。

Silver nanowires with clean surface were synthesized via the redox reaction between Sodium diphenylamine sulfonate and AgNO in the absence of surfactant, seed, and nanoporous membrane and at room temperature for the first time.

首次在室温，和不用表面活性剂、无机硬模板、晶种的条件下，通过二苯胺磺酸钠和硝酸银的氧化还原反应，制备了表面洁净的银纳米线。

The study manirests that 4,6-diaminoresorcinol diphosphate is stable for oxidization after being placed one month.

以次亚磷酸为还原剂对磷酸盐单体进行稳定化的研究表明：稳定后的磷酸盐在室温条件下储藏一个月后，基本不发生氧化。

The stopper on my globe is so firmly set in place that I don't think I could dislodge it with my hands, at room temperature, even if I really wanted to.

地球上的塞子，我是如此坚定地设置到位，我不认为我可以用我的手赶走它在室温下，即使我真的想。

The result indicated that the prepolymer had good dissolubility in acetone and good reserved stability under room temperature.

研究结果表明，室温下该预聚体在丙酮中具有优良的溶解性及良好的贮存稳定性。

The reaction of polyfluoroalkyl iodides with 4-pentenoic acids in the presence of sodium dithionite at room temperature in aqueous acetonitrile solution [CH〓CN: H〓O=3: 1 ] to gave the corresponding adducts, the latter could form γ-lactones 31～51 in the same medium in 62～92％ yield.

室温下，在乙腈/水[3：1]的介质中，多氟烷基碘化物在连二亚硫酸钠的存在下与4-戊烯酸及其在2或3位上具有取代基团的衍生物进行反应，反应2～5h，起先生成两者的加成物，该加成物无需分离，在同一介质中，可进一步反应得到相应的多氟烷基取代的γ-丁内酯31～51，产率62％～92％。

Nanoparticle ammonium zinc phosphate with dodecahedron morphology was synthesized via the solid-state reaction at room temperature.

采用室温固相反应制备纳米十二面体磷酸锌铵，用微热量法研究该反应的标准摩尔反应焓和纳米磷酸锌铵的标准摩尔生成焓，用4种热分析法研究纳米磷酸锌铵的分解动力学。

And Drosophila GST protein under 27℃.

在27℃室温状态下Aea-AGP-317能够消化试验中的所有试验蛋白质。

This invention discloses a preparation method for anti-corrosion rare earth magnet material characterizing that it takes the optimized grain-boundary phase design as the starting point on the basis of a dual alloy method to select Nd base alloy with high crystal forming ability as the assist alloy and reduces the temperature of the press mold blank in a quartz container to room temperature from over grain-boundary phase melting point with the water extraction way to get enough cooling rate and guarantee the non-grain-boundary phase, compared with the material of the same composition prepared by ordinary method, the weightlessness of this invented material reduces over 30% after testing the weightlessness of the material by laying it for 96 hours under 121deg.C, 2 atmosphere and 100% humid environment to show the advanced performance of anti-corrosion.

本发明公开了一种耐腐蚀稀土永磁材料的制备方法，其特征是它在双合金法制备工艺的基础上，以优化晶界相设计为出发点，选取具有较高非晶形成能力的Nd基合金为辅合金，并在烧结回火时将置于耐高温石英容器中的压型坯件，从晶界相熔点以上以水淬冷却的方式降温至室温，以达到足够的冷却速率，确保得到非晶晶界相，根据本发明制得的耐腐蚀稀土永磁材料，通过测量在121℃、2个大气压以及100％湿度环境下放置96小时后材料的失重情况，结果显示本发明得到的材料与常规方法制备的相同成分的稀土永磁材料相比失重减少了30％以上，充分证明其具备了更优越的耐腐蚀性能。可广泛应用于电子、汽车、计算机、电力、机械、能源、环保、国防、医疗器械等领域。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐