- 更多网络例句与手键相关的网络例句 [注：此内容来源于网络，仅供参考]
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Should contain integral 1 megohm resistor for safety.
裸手压测试键注意：须用没戴静电手环的另一手压步骤5 2。
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The minimal energy conformations of host-guest complexes were obtained with Tripos force field. Molecular dynamics simulations were carried out to investigate chiral molecular recognition and the distribution of hydrogen bonds. The energies of recognition system were calculated with MM+ force field as well.
首次将分子力学方法引入卟啉的手性分子识别领域的研究；用Tripos力场研究了主客体配合物最低能量构象，比较了同一主体与互为对映异构体的两个氨基酸甲酯形成的配合物的能量差异；用分子动力学模拟方法研究了手性分子识别行为及体系的氢键分布；用MM+力场研究了识别体系的能量。
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The invention discloses a process for preparing N-Boc derivative or N-Cbz derivative of chiral alpha, alpha'-double substituent pyrrolidine which contains ethylenic link and acetylenic link substituent.
本发明公开了一种制备含烯键和炔键取代基的手性α，α'-二取代吡咯烷的N-Boc衍生物或N-Cbz衍生物的方法。
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for preparing n-boc or n-cbz derivatives of chiral alpha,alpha'-disubstituted pyrrolidines containing olefinic bond and acetylene bond
一种制备含烯键和炔键取代基的手性α，α'-二取代吡咯烷的n-boc或n-cbz衍生物的方法
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A series of novel aromatic amide molecular tweezers with different chiral centers and cavities were designed and synthesized by using isophthalic acid as the spacer to bridge the different L-amino acid methyl esters under microwave irradiation.
以间苯二甲酸为隔离基，酰胺键桥联L-氨基酸甲酯构成手臂，在微波辐射下合成了具有不同手性中心和裂穴的新型手性芳酰胺类分子钳。
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The asymmetric alkynylation of carbonyls is proved to be one of the most powerful procedures for organic synthetic chemistry,where the formation of one carbon-carbon bond and one chiral center of propargylic alcohol can be achieved in one step,and has attracted organic chemists\' most attentions.Plenty of works have been reported in recent years.
由于催化末端炔对羰基化合物的不对称加成在制备手性炔丙醇的同时，能够构建一个碳碳键和一个手性中心，因而该领域的研究受到了研究者的广泛关注，有大量的研究工作见报道。
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The results showed that the addition leading to -2-phenyl-2-(2-vinylpiperidin-1-yl) ethanol 7 could proceed with good diastereoselectivity and excellent yield (95%).(3) The selective N-deprotection of -2-phenyl-2-(2-vinylpiperidin-1-yl) ethanol 2 without affecting the vinyl group in the substrate were untaken.(4) The Zip reaction for the transformation of -1-(3-aminopropyl)-3-methylazecan-2-one 8 to -7-Methyl-1, Sdiaza-cyclotetradecan-6-one 9 were undertaken. The results showed that, under controlled conditions, acceptable yields (43%) could be achieved and racemization can be minimized during the ring expansion reaction.
该合成路线与文献方法相比，反应条件较温和，也缩短了反应时间；(2)哌啶衍生物2与乙烯基格氏试剂进行加成反应的条件和立体选择性，取得了较好的结果（差向异构体比为80：20，产率95％左右）；(3)不饱和哌啶衍生物7在不影响碳碳双键的情况下去除苯基甘氨醇手性辅助基的条件；(4)具有羰基α位手性的氨基酰胺8在不同条件下经Zip重排反应转变为9的反应，控制反应条件，可使反应中消旋化减小到最小的程度。
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In 1952, twelve young and promising Italian musicians, mainly roman and mostly graduates of the master classes at the Accademia di Santa Ceacilia, got together "inter pares" to create a unique chamber orchestra comprising six violins, two violas, two cellos, one double bass and one harpsichord, with the intention of revitalizing the string repertory, particularly that of the Italian composers of the "settecento".
1952年，12个年轻而又前途光明的意大利音乐家聚在一起，他们主要来自罗马而且大多数取得了意大利国立圣塞西莉亚学院的硕士学位，萌发了创立一个独特的室内乐团的想法。这个乐团将包括6名小提琴手，2名中提琴手，2名大提琴手，1名低音大提琴和1名大键琴手，创立的初衷是复兴弦乐曲库，特别是意大利文学艺术史上18世纪作曲家的作品。
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Chiral epoxides produced by alkene epoxidation are extremely useful building blocks for asymmetric synthesis.
碳碳双键经不对称环氧化得到的光学活性环氧化物是一类重要的手性元，可以合成许多有价值的手性化合物。
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The standard cell phone style discrete button direction pad with a center action button is a good interface for one handed navigation and selection, but it sucks for games, where you really want a game boy style rocking direction pad for one thumb, and a couple separate action buttons for the other thumb.
传统的手机往往在四个方向键中嵌入一个中心动作按钮，这种按键布局方式有利于人们用单手来操作，但对于游戏来讲，确是糟透了，在玩手机游戏时，你可能真的希望自己的一只手能够操作一个Game Boy风格的方向键，而另一只手来控制一对相分离的动作按钮。
- 更多网络解释与手键相关的网络解释 [注：此内容来源于网络，仅供参考]
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asymmetric synthesis：不对称合成
不对称合成(Asymmetric Synthesis)在有机合成, 特别是手性药物等合成中具有相当重要的意义. 首先说,什么是手性? 在有机化合物中,化合物分子主要是以彼此相互连接的碳碳键构成骨架. 碳原子在成键时,采取了sp3的杂化方式,使得碳原子的
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hand brake：手刹
警车、救护车和消防车是鸣警笛; L键--视线(LOOK)按住此键时配合摇杆左右方向是向交通工具的两侧看,注意在汽车上只有向左右看时才能向相应的方向开枪,汽车上不能向前开枪; R键--手刹(HAND BRAKE)一般在过弯甩尾和让车完全停下的时候使用;
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hand mirror：手镜
在卫生间,我找到一管除脓剂(Suppuration H),并用指纹采样装置将一面手镜(hand mirror) 上的Howard夫人的指纹取下(具体方法是:先用小刷蘸些粉末,按住鼠标左键在目标物上来回拖动直到出现清晰的指纹,再用胶带将指纹采集下来,
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spacebar：空白键
那麼,放开手后该符号或数字便会输入完成并且也自动跳回英文keyboard了. 另外,只要连续按两下(double click)空白键(spacebar)便能够输入句号,根本不用切换keyboard.
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telegraph key：手键
手柄 handset | 手键 telegraph key | 寿命试验 life test
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Zoom：(缩放工具)
COLOR 拾取工具:(PICK) 最常用工具快捷键:空格键但在进行文本编辑时快捷键为:CTRL+空格键 整形工具:(SHAPE EDIT) 快捷键:F10 缩放工具 :(ZOOM)在缩放工具里有些类别: 曲线或手绘工具:(CURVE):F5 矩形和椭圆工具:(RECTANGLE
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acetylenic bond：炔键;三键
acetyl group 乙酰基; | acetylenic bond 炔键;三键; | achiral molecule 非手性分子;
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Number of Hydrogen Bond Acceptors：(氢键受体数)
Number of ChiralCenters (手性中心数) | Number of Hydrogen Bond Acceptors (氢键受体数) | Number of Hydrogen Bond Donors (氢键供体数)
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Bowmen：弓箭手
其他人围殴侦察兵将其击退(broken);鹰飞到前方待机. 注意飞行部队攻击地面部队时必须在其正上方,如果想停留在我方部队的正上方需要按住shift键后移动. 敌方回合,弓箭手(Bowmen)上前攻击我方2级侦察兵;骑兵和另外两支步兵攻击戟兵.
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hand brake lever latch rod knob：手闸杆弹键杆钮
hand brake lever latch ==> 手闸杆闩 | hand brake lever latch rod knob ==> 手闸杆弹键杆钮 | hand brake lever operating spring ==> 手闸杆操作弹簧