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- In this paper,polyphenylacetylene(PPA)is modified by Fe(III)-phthalocyanine on the side-chain by means of special molecular design. 本文基于分子設計的思路,在聚苯乙炔側鏈引入酞菁基團對其化學(xué)改性,并對其性能作了初步的探索。
- In this paper,polyphenylacetylene(PPA)is modified by Fe(III)-phthalocyanine on the side-chain by means of special molecular design.At the same time,its performances are studied too. 本文基于分子設計的思路,在聚苯乙炔側鏈引入酞菁基團對其化學(xué)改性,并對其性能作了初步的探索。
- And using(Ph_3P)_2PdCl_2,the trans-cis PPA is found. 用(Ph_3P)_2PdCl_2催化苯乙炔得到反-順式PPA.
- In fact, the Cromalin made the PPA alter its standard to DuPont’s. 事實(shí)上，在克羅馬林作出苯丙醇胺改變其標準，以杜邦公司的。
- PPA is a rare condition characterized by a steady loss of language skills. 原發(fā)性進(jìn)展失語(yǔ)癥（PPA）是一種罕見(jiàn)的癥狀，以語(yǔ)言能力的逐漸喪失為特征。
- The Cmin of PPA CRS was higher than that of the conventional tablet (P<0. 05). (P<0.;01); C_(min)“高于普通片劑(P<0
- The unadjusted odds ratio for stroke with PPA exposure was 2.46 and after adjustment, it was 2.16. 服用PPA患者中風(fēng)風(fēng)險的優(yōu)勢比調整前和調整后分別是2.;46和2
- Frank is a member of Professional Photographers of America, PPA and Wedding and Portrait Photographers International, WPPI. 陳啟華是美國職業(yè)攝影師協(xié)會(huì )會(huì )員，美國國際婚禮攝影師協(xié)會(huì )會(huì )員。
- In addition, more recent and larger and longer PPA exposures were related to increased stroke risk. 此外，近期、大劑量和長(cháng)期服用PPA與增加中風(fēng)風(fēng)險具有相關(guān)性。
- This will be for the PPA Special Offers that are sent to targeted country members. 這將是為被送到被瞄準的國家成員的PPA特價(jià)優(yōu)待。
- They chose the Yale University School of Medicine;in 1999 the study confirmed that PPA causes hemorrhagic stroke. 美國耶魯大學(xué)醫學(xué)院雀屏中選，并在1999年時(shí)確認PPA有引發(fā)出血性中風(fēng)的危險。
- Section 6, the author intuitively shows the total process of PPA by a simulative case. 文章最后通過(guò)一個(gè)模擬的案例向讀者直觀(guān)展示了項目后評價(jià)的整個(gè)過(guò)程。
- Then, with a comparison of all types of high-speed adder, we choose Koggle-Stone PPA structure. 基于對多種并行前綴加法器的實(shí)現分析，采用了Koggle-Stone結構的加法器作為混合加法器的主體；
- be charred to death 被燒死
- Conclusion ECG may play an important role in the assessment of the volume of shunt and PPA in left to right shunt CHD. 結論 體表心電圖雖能較好分析左向右分流先心病的類(lèi)型，評價(jià)分流量大小及肺動(dòng)脈壓力情況，可作為先心病診斷中的一個(gè)重要輔助檢查，但仍有一定局限性，須結合臨床癥狀、體征和輔助檢查進(jìn)行綜合評判。
- The ordered phases will form again slowly at the existence of PPA solvent after cooling. 這種轉變是可逆的，降溫后在溶劑存在下，一定長(cháng)時(shí)間后又可形成上述兩種有序相。
- The optimized blend condition of PPA and SBR in asphalt and the technics of making such a asphalt was studied . 摘要 研究了多聚磷酸復配SBR改性瀝青的復配條件及工藝。
- TEM photograph shows the orientation and arrangement of PPA molecular chains in the monolayer is regular. TEM照片顯示，聚苯乙炔分子鏈在單分子膜中是有序排列的。
- PPA members rest easy, knowing that they\'re backed by the industry\'s most powerful organization. PPA以卓越的行業(yè)標準引領(lǐng)并為攝影師提供認證，全美大概有1500名經(jīng)PPA認證的攝影師。
- He discussed the issue at a support group meeting of men with dementia, and it turned out that eight of the nine men in the room with PPA had had vasectomies. 他在一次癡呆男性患者援助小組會(huì )議上對該問(wèn)題進(jìn)行了探討，最終發(fā)現9名PPA男性患者中有8名患者同輸精管切除術(shù)相關(guān)。
