1) sex dimorphism
性二型性
2) chiral diol
手性二醇
1.
Some chiral diols were also investigated as the ligands, with those derived from indene exhibiting better enantioselectivity.
又考察一些手性二醇配体,其中,茚衍生的配体有着较好的手性诱导性能。
3) chiral diamine
手性二胺
1.
The water-soluble chiral diamine ligands are prepared by sulphonation reaction.
通过磺化反应合成了水溶性手性二胺配体,用1H-NMR,13C NMR,IR分析表明两种构型的手性二胺的磺化反应都发生在邻位,并寻求了合成水溶性手性配体的最佳途径。
2.
At present, studies on and applications of chiral diamines have been regarded as one of the most remarkable fields in catalytic asymmetric reactions.
手性二胺作为具有良好催化活性和对映选择性的手性配体或手性辅助剂,在多种催化不对称反应中已经得到广泛应用,并取到了很好的研究成果。
4) linear dimerization
线性二聚
1.
The selective linear dimerization of isoprene to produce myrcene in a homogeneous catalyst solution prepared by mixing the alkali metal,diisopropylamine(DIPA),the solvent and isoprene(IP) was studied.
研究了异戊二烯 (IP)在碱金属催化作用下均相线性二聚生成月桂烯的影响因素 ,得到最佳工艺条件 :反应温度 13℃ ,钠和钾各占一半组成的催化剂用量n(cat)∶n(IP) =(5～ 6 )∶10 0 ,二异丙胺的量n(DIPA)∶n(IP) =7∶10 0。
2.
The selective linear dimerization of isoprene to formate myrcene in a single phase catalyst solution prepared by mixing two metals, amine, solvent and a small content of isoprene was studied.
研究了异戊二烯在两种金属催化作用下均相线性二聚生成月桂烯的影响因素 ,得到优惠工艺条件 :反应温度 13℃ ,催化剂∶异戊二烯 (mol/mol) =0 。
5) modificated lime-flyash
改性二灰
6) sexual dimorphism
性二型
1.
Comparison of the sexual dimorphism of brain structure between mandarin vole (Microtus mandarinus) and reed vole (M. fostis);
棕色田鼠和沼泽田鼠脑内部结构性二型的比较研究
2.
This species also exhibits a remarkable sexual dimorphism and the male is liable to be mistaken for a Centrotoscellus species.
尖三刺角蝉Ｔｈｉｃｅｎｔｒｕｓａｃｕｔｉｃｏｒｎｉｓ的雌雄均只有１０条染色体，性别决定为ＸＹ型，是角蝉科已知最为独特的核型特征，该种具有明显的性二型现象，由于雄性不具有上肩角，极易被误认为是秃角蝉属ＣｅｎｔｒｏｔｏｓｃｅｌｌｕｓＦｕｎｋｈｏｕｓｅｒ的种类。
参考词条
补充资料：连续性与非连续性(见间断性与不间断性)
连续性与非连续性(见间断性与不间断性)
continuity and discontinuity
11an父ux泊g四f“山。麻以角g、.连续性与非连续性(c。nt，n琳t:nuity一)_见间断性与不间断性。and diseo红ti-
说明：补充资料仅用于学习参考，请勿用于其它任何用途。