查询词典 helical

All the compounds are characterized by IR and elemental analysis.we design and prepare a bipyridinium supramolecular compound and six coordination compounds, which are also characterized by IR, elemental analysis and X-ray structure analysis. According to X-ray structure analysis, hydrogen bonds and n-n stocking interactions participate in the architecture of three-dimensional framework [H2L1 (NO3)2 (H2O)2]n; one-dimensional zigzag coordination polymer [Hgl21.5CH3OH]n; binuclear metallamacrocycle (HgI2L2)2 3H2O; helical double-stranded one-dimensional coordination polymer [Co2(L2)2-2CH3OH]n; double-stranded one-dimensional coordination polymer [Co2(L3)2-CH3OH-CH3CN]n; and three-dimensional compound [Cu(C5H4NCOO)2(H2O)2]-H2O with hydrogen bonds, three-dimensional coordination polymer {[Cd(C5H6NCOO)2H2O]-DMF}n, which are indirectly obtained from the precursor ligand L3 through metal ion induced the hydrolysis of diamide and self-assembled with the hydrolyzate.

我们首次合成了一个双吡啶鎓超分子化合物和六个过渡金属配合物，并通过IR谱，元素分析和X-ray晶体衍射分析对它们进行了表征。X-ray晶体结构分析表明：超分子化合物[H_2L1·(NO_3)_2·(H_2O)_2]_n是由多种氢键和芳香环间的π-π堆积作用构建的三维无限结构；[HgI_2(L1)·1.5CH_3OH]_n是一维锯齿状配位聚合物；(HgI_2L2)_2·3H_2O是双核金属大环化合物；[Co_2(L2)_2·2CH_3OH]_n是具有一维双螺旋结构的配位聚合物；[Co_2(L3)_2·CH_3OH·CH_3CN]_n为一维双链结构的配位聚合物；以及由非直线形配体L3在金属离子Cu和Cd的诱导作用下发生水解，并且金属离子与水解产物——异烟酸根离子自组装，形成了三维氢键超分子化合物[Cu(C_5H_4NCOO)_2(H_2O)_2]·H_2O和三维配位聚合物{[Cd(C_5H_6NCOO)_2H_2O]·DMF}_n。

Arrangements of the helical chains in these dichromatic space groups have been studied.

从晶畴理论出发，得出具有Cc空间群与P21/c空间群的两种晶畴共存于一个体系中，3。

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems)- Part 11: HDV format for 1080i and 720p systems

录制。为用户使用的(525-60.625-50，1125-60和1250-50系统)用6，35mm磁带的螺旋扫描数字视频盒式录制系统第11部分： 1080i 和720p系统的HDV格式

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems)- Part 4: Pack header table and contents

录制。为用户使用的(525-60.625-50，1125-60和1250-50系统)用6，35mm磁带的螺旋扫描数字视频盒式录制系统第4部分：包装标题表格和内容

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems - Part 7 : EDTV2 format.

为用户使用的(525-60、625-50、1125-60和1250-50系统)用6.35mm磁带的螺旋扫描数字视频盒式记录系统。

10 Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems - Part 10 : DTV format.

客户用的(525-60.625-50，1125-60和1250-50系统)用6.35mm磁带的螺旋式扫描数字盒式录像带录制系统。

Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems).

用户用(525-60、625-50、1125-60和1250-50系统)6，35mm磁带的螺旋扫描数字视频盒式录音系统。

9 Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems - Part 9 : DVB-Format.

客户用的(525-60.625-50，1125-60和1250-50系统)用6.35mm磁带的螺旋式扫描数字盒式录像带录制系统。

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems - Part 1 : general specifications.

家用6，35mm磁带上用数字倾斜磁迹录制的录像磁带系统(525-60，625-50，1125-60和1250-50系统)。

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems - Part 3 : HD format for 1125-60 and 1250-50

客户用的(525-60、625-50、1125-60和1250-50系统)用6.35mm磁带的螺旋式扫描数字盒式录像带录制系统。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失