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- The biochemical oxygen demand (BOD 5) of 47 substituted benzenes were determined. 测定了 47种取代苯类化合物在松花江水中的 5日生化需氧量 (BOD5) .
- The biodegradability of 27 substituted benzenes in the Songhua river water by BOD technique. 测定了27种取代苯类化合物在松花江江水中的生物降解性。
- Werner's method was that used previously by organic chemists to elucidate the structures of substituted benzenes, namely isomer counting. 沃纳所用的方法是从前有机化学家用来阐述取代苯结构的方法,即异构体计算法。
- Standard formation enthalpies of substituted benzene and benzoic acids derivates are related to the primary effect, secondary effect and the barrier point of the substituent. 摘要基于取代苯和取代苯甲酸衍生物的标准生成焓受取代基的初级效应、次级效应及取代基之间的障碍点等因素影响。
- Keywords Bayesian regularized neural network;substituted benzenes;QSAR;lymnaea stagnalis; 贝叶斯规整化神经网络;苯取代物;定量构效关系;静水椎实螺;
- Keywords Headspace solid phase microextraction;Gas chromatography;Sample preparation;Substituted benzenes; 顶空固相微萃取;样品预处理;气相色谱;苯系物;
- Keywords substituted benzenes;halflife period of biodegradation;structural parameter;correlation;prediction; 取代苯类;降解半衰期;结构参数;相关;预测;
- The coach substituted Smith for Jones. 教练让史密斯上场,换下了琼斯。
- Tom substituted for the injured player. 汤姆替换了那个受伤的运动员。
- substituted benzene carbonic acid Pka值
- The understudy was substituted when the leading actor fell ill. 主角演员患病,由替角代替演出。
- Keywords substituted benzenes;Photobacterium Phosphoreum;acute toxicity;combined toxicity;quantitative structure activity relationships;toxicity enhance index; 取代苯;发光菌;毒性;联合毒性;定量结构活性相关;毒性加强指数;
- A striker was substituted for a midfield player in the last half-hour of play. 在比赛的最后30分钟里,一个中场运动员被一个强攻手替换了下去。
- We substituted a red ball for blue to see if the baby would notice. 我们用红皮球换下了蓝皮球,看这婴儿会不会发觉。
- Home-made parts are being substituted for imported ones. 国产零件取代进口零件。
- She substituted margarine for butter. 她用人造的奶油代替黄油。
- substituted benzenes 取代芳烃
- He substituted as the typist in the office. 他代替做这个办公室的打字员。
- We had to eat some potatoes substituted as a meal. 我们只得吃了几个马铃薯充饥。
- He substituted for the typist during her absence. 打字员不在时由他代替。