Increase in pyrolysis oxygen concentration led to low tar yield, of which the oxygen contained compound increased especially phenol.

Research on the tar yield and properties of coal pyrolysis in an internal-heated rotary furnace

内热式回转炉煤热解工艺的焦油产率与性质研究

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The tar yield increased firstly, and then decreased, and got its maximum at 600 ℃.

随温度升高，焦油产率表现出先增大后减小的趋势，在600℃时达到最大值。

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Tar yield increases with the increase of volatile matter yield of brown coal in different ages.

焦油产率系随着不同时代褐煤挥发分产率的增多而增加。

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Practice on reducing tar yield of cigarette

卷烟降焦综合技术方法与实践

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Establishment of Mathematical Model for Predicting Cigarette's Tar Yield with Projection Pursuit Regression Method

投影追踪回归（PPR）法建立卷烟焦油预测数学模型

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With the increase of pyrolysis temperature and gas flow rate, the tar yield increases.

随着热解温度和气体流量的增大，焦油产率增加。

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Correlation, Path and Regression Analyses Between Physical Traits and Tar Yield of Flue-cured Tobacco

烤烟物理性状与焦油量的相关、通径及回归分析

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The smoking quality of cigarettes made of the microwave dried cut tobacco was improved obviously, while the weight of cigarette, nicotine content in smoke, and tar yield were decreased by 13.4%, 21.2%, and 4%, respectively.

卷烟质量得到明显提高，单支重量、烟气烟碱量和焦油量各下降134%、212%和4%。

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The federal government could soon be policing the tobacco giants, a bipartisan senate bill would allow the FDA to regulate what's in cigarette and tobacco products, it could ban claims such as mild or low tar as well as restrict tobacco advertising.

联邦政府就爱你个颁布新的烟草行业政策，两党议会允许美国粮食与药物管理局来监控烟草里面的东西，禁止包括轻微的或低量的焦油。

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The results indicate that, It works stability, convincible and quickly, Precision is high, the result of density of ethylene tar is well.

结果表明，U型振动管密度计工作稳定，方便快捷，测量精度高，用于乙烯焦油密度的测定效果较好。

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There are also endless numbers of birds in the tar as well.

沥青坑里还有无数只鸟的尸体。

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Discussion on and Antidote to the Problems of Electrical Tar Trap Process

攀钢电捕存在问题的探讨及对策

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To back up the entire file system using tar to a SCSI tape drive, excluding the/ proc directory

要使用tar来把除/proc目录之外的整个文件系统备份到SCSI磁带设备

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By taking optimization measure of blending liquid pitch discharged from wash oil regenerator into coal tar and eliminating naphthalene stripper, the benzol scrubbing effect is increased, the wash oil regeneration process is simplified, both good economic effect and environmental effect are obtained.

通过把洗油再生器排出的液态树脂沥青兑入煤焦油和取消脱萘塔等优化措施，提高了洗苯效果，简化了洗油再生的工艺，取得了很好的经济效益和环保效果。

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Tar stripper naphtha vapours

焦油汽提器中的石脑油蒸气

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and taking sharp aim at it, he darted the iron right over old Bildad's broad brim, clean across the ship's decks, and struck the glistening tar spot out of sight.

瞧着吧！于是，他以那一小滴柏油为目标，就把那支标枪嗖地一声掠过比勒达老头的阔边帽顶，直穿过船甲板，把那滴闪烁的柏油打得无影无踪了。

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Tar spot ( Phyllachora graminis) and bacterial brown steak were major diseases.

黑痣病（Phyllachoragraminis）和细菌性褐条病为主要病害。

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The utility model relates to a tar separator, which belongs to special equipment for tar separation used in the manufacturing process of bamboo carbon and vinegar.

本实用新型涉及一种焦油分离器，属适用于竹炭竹醋生产中焦油分离的专用设备。

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The running status of tar-ammonia liquor separation system in the coking plant is analyzed, high efficient demulsifier is selected to conduct separation test on tar-ammonia liquor.

分析了焦化厂焦油氨水分离系统的运行状况，筛选了高效破乳剂对焦油氨水进行分离试验。

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Study on Recycling Technology for Phenol Tar(ⅱ): the Separation of Crackates

酚焦油资源化技术研究（Ⅱ）&裂解产物的分离

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