丁
- 与 丁 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Not one word in "The Ring of Bells," nor in "The Peri and the Pearl" has been changed.
在这一切之中马丁·伊登和马丁·伊登完成的作品究竟有什么作用呢?
-
Permeation measurements indicated that the permeance ratio of 〓N to 〓N could be reached to 21 at 350℃.
渗透试验的结果表明,三丁胺对全氟三丁胺渗透率之比可达21(300℃)。
-
Of the two Dante, by reason of his poetic sublimity, was undoubtedly the greater; but, as regards Humanism Dante was merely its precursor while Petrarch initiated the movement and led it on to success.
两个但丁,因他诗意的崇高,无疑是更大的,但是,对於人文但丁只是它的前体,而彼得拉克发起的运动,并导致它的成功。
-
Thirteen healthy volunteers were orally administered 1.25 g phenacetin and the concentrations of phenacetin and its metabolites in their sera and urine were determined with the described LC-MS/MS method.
测定13名健康受试者口服非那西丁1.25 g后血清和尿液中非那西丁及其代谢产物的浓度。
-
No interference was found with conventional drugs, except vancomycin and methylprednisolone. The average concentrations of phenacetin and paracetarnol were (5.94 ± 4.79) and (8.81 ± 2.91)μg/mL in serum,(3.25 ± 1.10) and (570.45 ± 187.13)μg/mL in urine in the 13 healthy volunteers.
除万古霉素和甲泼尼龙外,其他临床常用药物对测定无干扰。13名健康受试者血清中非那西丁和总对乙酰氨基酚浓度为(5.94±4.79)和(8.81±2.91)μg/mL;尿液中非那西丁和总对乙酰氨基酚浓度为(3.25±1.10)和(570.45±187.13)μg/mL。
-
Therelationship of the amount of catalyst and the ee% of product was seen to be negative nonlin-ear. Catalyst 3 was used in the enantioselective addition of diethylzinc to aromatic aldehydesand gave good results. The configuration of products was determined by the configuration ofthe catalysts' chiral carbon linked with hydroxy group. Using β- amino alcohols bearing only one chiral center as catalysts for the enantiose-lective addition were studied. D-N, N-dialkyl-2-amino butanol gave poor catalytic effect be-cause of their structure. The configuration of the product is the same as the catalyst. Anotherkind of β- amino alcohols - phenylglycine derivatives and valine derivatives have chiralcenter on the carbon linked with amino group. Catalyzed by-phenylglycine derivatives 6,7, 9, 10, the reactions gave satisfied results. The optical yields exceeded 80%.
在探讨了含有两个手性中心的β-氨基醇之后,选择了只有一个手性中心的β-氨基醇,一是手性中心为连羟基的手性碳原子:D-N,N-二烷基-2-氨基丁醇;二是手性中心为连氨基的手性碳原子:D-苯基甘氨酸衍生物和L-缬氨酸衍生物。D-2-氨基丁醇的催化效果不太好,这与其结构的空间位阻较小有关系,反应产物与连羟基手性碳构型一致;由苯基甘氨酸和缬氨酸出发合成五种β-氨基醇6-10,研究了不同ee%的-6作用下的二乙基锌-苯甲醛加成反应,发现该催化剂具有不对称放大效应;-7,9,lO的催化效果也比较令人满意,光学产率80%以上,所得产物构型与催化剂构型一致。
-
Three days after inoculation, 67.13% grape phylloxera selected 'Kyoho', while only 15.29% and 17.58% phylloxera selected '5BB' and '140Ru', respectively.
对砧木5BB和巨峰根系的挥发性组分进行测定,发现2个品种挥发物独有组分数量均较高,巨峰独有组分为23个,占总成分数的48.94%,5BB的独有组分为32个,占总成分数的57.14%。5BB和巨峰的共有组分为24个,主要成分均为亚油酸甲酯和反油酸甲酯,但含量有所不同,其中,5BB以倍半萜类的丁香醇及脂肪酸甲酯类的亚油酸甲酯,反油酸甲酯,棕榈油酸甲酯含量较高,高于巨峰中相应物质含量的4.23%~6.46%,而巨峰以邻苯二甲酸二丁酯及胆甾烷含量较高,分别高于5BB相应组分含量的6.81%和1.07%。
-
Reading it has sent this reviewer back to "Pincher Martin","The Inheritors" and his other books with a sense of revelation.
蝇王》让这位评论家回想起《品契马丁》《继承者》和戈尔丁其他同样令人耳目一新的作品。
-
The synthesis qualifications of tributyl oleoylcitrate were studied. The effect of plasticization of tributyl oleoylcitrate was discussed.
研究油酰柠檬酸三丁酯的合成工艺条件,探讨油酰柠檬酸三丁酯的增塑效果。
-
The recent development in the toughening and plasticization of poly or poly(hydroxybutyrate-co-hydroxybutyvalerate) was reviewed.
总结了近年来国内外关于聚羟基丁酸酯和聚羟基丁酸酯-co-羟基戊酸酯共聚物在增韧和增塑改性方面的研究进展。
- 推荐网络例句
-
For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
-
Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
-
Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。