Reaction pathway of hydrogenation reaction of 2, 4-dinitrotoluene (2, 4-DNT) and influence of operational conditions on its reaction rate were investigated by using Ni/kieselgur as the reaction catalyst.
研究2，4-二硝基甲苯(2，4-DNT)在Ni/硅藻土催化剂上的加氢反应历程和操作条件对反应速率的影响。
DNT must always be removed from intramedullary canal of bone because there is a possibility of interference with callus formation.
但完毕后必须将DNT自骨髓腔内移走，否则有可能干扰骨痂形成。
This paper describes the separation and determination method for PA, HMX, RDX, CE, TNT., PETN and DNT in explosive factory's wast- ed water by reversed—phase high performance liquid chromatography.
文中叙述了用反相高效液相色谱法对火炸药工厂废水中苦味酸、奥克托金、黑索今、特屈儿、梯恩梯、太安和二硝基甲苯的分离分析方法。
In this paper, hydrogen sulfide was replaced with firstly ammonium sulfide to reduce crude DNT, the best process condition was obtained, when the reaction proceeded at30~40℃ for 4h, the yield of 2, 6-DNT reached 75% and the purity was more than 98%.
本研究首次采用硫化铵替代硫化氢作为还原剂进行选择性部分还原，确定了最佳工艺条件：以10g1：1的DNT为基准，反应温度30~40℃，反应时间4h，获得的2，6-DNT的纯度达到98%以上，回收率最高为75%。
The optimum operating condition forcrystallization separation was determined by solubility curve of 2, 4-DNT to ethanol.2, 6-DNT was obtained in high purity by selective reduction by ammonium sulfide in place ofhydrogen sulfide as reduction agent.
方法二：采用化学还原的方法，在传统以硫化氢作还原剂的基础上，改用硫化铵作为还原剂，对 2，4-/2，6-DNT 比例不同的样品进行对位选择性还原，分离出未被还原的 2，6-DNT，重结晶，得到纯度较高的 2，6-DNT。
In reduction process, 2, 4-DNT was removed to 3-nitro-p-toluidine by ammonium sulfide in dioxane solvent. Thereduction product that is an important intermediate employed in medicine and dye industrywas isolated by the filtrate as its hydrochloride salt by passing dry hydrogen chloride.
在还原实验中，2，4-DNT的还原产物4-甲基-3-硝基苯胺是重要精细化工中间体，可用于医药、染料等行业，从而使该分离提纯2，6-DNT的工艺路线更加完善。
B:You know you shou1dnt say that at a time 1ike this.
耻体知道你不应该在这个时候说。
Paint branch, is a collection of world-renowned paint products and the management of strong technological advantages, the province has issued the construction and fitting-Construction Professional qualifications and the issuance of Guangzhou City, the Housing Authority's housing maintenance qualified professional firms, and with Japan Coating Co., Ltd., has established the Guangdong DNT paint sales service centers, the Company at the same time a number of agents at home and abroad well-known brands of paint.
广州市晖阳承造建材贸易公司（原广州市日之彩装饰工程有限公司涂料分公司），是一间集世界知名涂料产品和雄厚的管理技术优势，具有省建委核发的建筑装修专业资质和广州市房管局核发的房屋维修资质的专业公司，并与大日本涂料株式会社合作，设立DNT涂料广东销售服务中心，本公司同时代理国内外多个知名品牌的涂料。
The influence of operational conditions on the reaction rate was examined with initial rate analysis method and its result showed that under optimal experimental condition with such a mixing speed as 1500 r/min, the reaction entered into its intrinsic region and the reaction rate increased linearly with the catalyst dosage as well as increased with the pressure and temperature.
用初速率分析法考察操作条件对反应速率的影响，分析结果表明：在最佳实验条件下，当搅拌速率达1500 r/min时，反应进入本征区；反应速率随催化剂用量的增加而线性增加；反应速率随压力和温度的升高而加快；温度与催化剂用量是影响2，4-DNT加氢反应速率的关键因素。
The toxicities of each and their binary mixtures of 2, 4-DNT and five derivatives of nitro benzenes to vibrio fischeri were determined respectively.
测定了2，4-二硝基甲苯(2，4-DNT)与5种硝基苯衍生物对发光菌的单一毒性和在等剂量下二元混合物的联合毒性。
Im sorry. but its iust that 1 wish you wou1dnt take n1e somuch for granted.
对不起。。。。。。我只不过是希望你不要把我毳戚理薅当然昕你镶的入。
Dnt't try so hard, the best things come when you least expect them to.
不要关键，最好的总会在最不经意的时候出现。
This is why I dnt watch Spanish Football.
这就是我不看西班牙足球的原因。
But I dnt know..
但我知道，天玑。。
And dnt use the excuse of C.
和二硝基甲苯使用借口的C。
Methods 11 DNT patients who underwent operation during 2000.11 to 2003.4 were studied.
分析 2 0 0 1年 11月至 2 0 0 3年 4月手术治疗的 11例DNT患者的临床和病理资料。
Dnt't let me cry outside the door of your candy store.
不要让我在你的糖果店门外哭泣。
They r lying they dnt even knw what a missile is....
他们在骗人吧丫根本不知道啥是蛋蛋。。。。。。
You shou1dnt exped her to marry you, its ridicu1ous.
你不应该期望她嫁给你。这是可笑的。
DNT is placed over the oozing gall bladder bed and pressure is applied for 2 to 3 minutes until hemostasis is achieved.
将DNT覆盖于渗血的胆囊床上，压迫2－3分钟直至止血成功。