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- Keywords 2;3;5 - trimethylpyrazine;biacetyl;propylene diamine;synthesis; 三甲基吡嗪;合成;丁二酮;丙二胺;
- propylene diamine 丙二胺
- alkyl propylene diamine 烷基丙烯二胺
- PN Philippine Aero Transport Inc. 菲律賓航空運輸公司。
- Methylpyrazine has been synthesized by gas-solid contact catalysis of ethylene diamine with propylene oxide in fixed-bed reactor. 本文研究了以乙二胺和環氧丙烷為原料,經氣固相接觸催化合成2-甲基吡嗪的新工藝。
- Many small fi wrms went under in that depressi pn. 在那次經濟蕭條中，許多小企業破了產。
- Not like last year, this year, Pn. 可是很出乎意料的！
- Pn: Act out the dialogue in pairs. 通過學生結對表演課文對話,熟悉句型和課文。
- Water, Propylene Glycol Dicaprylate/ ... 恩，就是那個牛油果。
- Na5 Ethylene Diamine Tetra (Methylene Phos... 摘要:乙二胺四甲叉膦酸五鈉 EDTMP?
- Adds "PN" to the beginning of each specified part number. 將「PN」添加到每個指定商品編號的開頭。
- Study on overlapping principle of PN junction in nonlinear zone of. 光電池非線性區PN結光生伏特效應的研究。
- Vegan. Paraben, SLS, Propylene Glycol Free &Hypoallergenic. 素食，不含帕拉膠，SLS，丙二醇，低變應原。
- DR was little changed under above -1.6MPa which decreased Pn. _w 為-1.;6MPa 以上;DR 變化不大;
- Vegetarian. Paraben, Propylene Glycol and Gluten-Free. 素食，不含帕拉膠，丙二醇，麩質。
- A new correlation which predicts propylene yield is presented. 介紹一個新的預測丙烯產率的關聯式。
- Nitrogen balance was better in EN group than that in PN group. 術后第3天起，兩組間每日氮平衡和累計氮平衡均有差異顯著(P<0.;05，P<0
- Objective To study the function of the VIP in pathogenesis of PN. 目的了解血管活性腸肽(VIP)在結節性痒疹(PN)發病中的作用。
- Fourteen cases of PGS recieved the combination of PN with EN. 結果:治療1周內兩組平均陽性率無顯著性差異,1周后腸外營養組平均陽性率高達62。
- At last, the paper also discusses the pragmatic effects of PN. 這一章還對語用否定的語用效果進行了分析。
