查询词典 pah

And then is the 2 to 4 ring PAH, in which the content of naphthyl- and phenanthryl- substance is more than 70%.

轻质馏分脂肪烃主要为环烯烃和二烯烃等烯烃，烷烃中以环烷烃居多；中质以上馏分的脂肪烃主要由C_(13)～C_(32)的正构烷烃组成。

PAH are mainly used in plasticized or black colored plastic or rubber materials and may be absorbed through the skin in case of direct contact.

多环芬香烃主要来自于软质、深色的橡胶及塑料，可以透过皮肤直接接触感染。

According to government regulation, the amount of harmful volatile organic substances indoor must be under 3 ppm. However, as we burn the paper money, the detector set at zero skyrockets to 64.4ppm, exceeding the limit by more than 20 times.

污染的情况是相当严重的，那这些燃烧都是属於不完全的燃烧，少量的出来的话，很容易就测到非常高量，几十个ppm的这些有毒气体，像是PAH之类的东西。

It was found that the main reason why SBS containing oil was easy to yellow was that there is plenty of polycyclic aromatic hydrocarbon in the extender oil,PAH can easily turned quinones with yellow.Antiyellowing performance of SBS can be only developed in a little extent when antioxidants were added.The anti-yellowing performanc...

研究结果表明，充油SBS产品变黄的主要原因是油品中的稠环芳烃在光氧环境中易转化为黄色的醌，添加抗氧剂对延缓产品变黄的作用不大，通过催化加氢消除填充油中的芳烃或添加适当的光稳定剂可以提高产品的耐黄变性能。

By the end of the 12-week study, all the patients who receied the bosentan-iloprost therapy were able to walk 98 feet further during a six-minute walk test, and 11 of them showed improement in a measurement of how seerely they were affected by PAH.

在12周的研究后，接受伊洛前列素和波生坦联合治疗的病人可在6分钟步行测试中能独立行走98尺，其中11例可观察到明显的改善。

Pantaleo G,Graziosic,Demarest JF,et al.HIV infection is active and progressive in lymphoid tissue during the clinically latent stage of disease［J］.Nature,1993,362:355～360［5］Moss PAH,Rowland-Jones S,Frodsham PM,et al.Persistent high frequency of human immunodeficiency virus-specific cytolytic T cell in peripheral blood of infected donors［J］.Proc Natl Acad Sci USA,1995,92:5773～5777

一些研究显示在无免疫肌肉大夫压力下体外传代HIV的状况类似体内免疫肌肉系统全面崩溃的感染血液末期的状况：HIV变异株相对少，株间变异小，但毒力强、复制快、病毒痔疮产量高，可形成多核巨细胞疑难等等；HIV在适应了体外培养的环境和宿主细胞疑难、失去了选择大夫压力后，少数变异株在传代过程中经逐步稀释后逃脱优势株的抑制逐渐被固定下来而成为新的优势株［7］。

Pantaleo G,Graziosic,Demarest JF,et al.HIV infection is active and progressive in lymphoid tissue during the clinically latent stage of disease［J］.Nature,1993,362:355～360［5］Moss PAH,Rowland-Jones S,Frodsham PM,et al.Persistent high frequency of human immunodeficiency virus-specific cytolytic T cell in peripheral blood of infected donors［J］.Proc Natl Acad Sci USA,1995,92:5773～5777

一些研究显示在无免疫压力下体外传代HIV的状况类似体内免疫系统全面崩溃的感染末期的状况：HIV变异株相对少，株间变异小，但毒力强、复制快、病毒产量高，可形成多核巨细胞等等；HIV在适应了体外培养的环境和宿主细胞、失去了选择压力后，少数变异株在传代过程中经逐步稀释后逃脱优势株的抑制逐渐被固定下来而成为新的优势株［7］。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。