查询词典 spacer

The aim of the invention is to connect the lamellae (25) in one such lamellar seal at a precisely defined distance, in a fixed and simple manner. To this end, the lamellae (25) are hard-soldered together by means of interlying spacer elements.

在这种片式密封中，按照简单方式在同时精确调整间距的情况下达到片(25)的固定连接，方法是片(25)通过中间所处的间隔件相互硬焊接。

We reviewed the parameters relating to clonal growth, such as internodal length, spacer length and branching angle as well as rhizome elongation and branching rates, of seagrass species. These parameters have determinant impacts on the expanding of seagrass patches. However, breeding system may also affect patch sizes.

与克隆生长有关的参数(如节间长度、间隔子长度、分枝角度以及延伸速率和分枝率等)对于海草的克隆生长有着决定性影响，但繁育系统对克隆斑块大小也有较大影响。

Conclusion. Combining vertebral augmentation and placement of an interspinous process spacer represents a viable option for treating such fragile patients.

联合使用椎体加强术和植入棘突间装置，对这种脆弱的患者来说，是一个切实可行的选择。

Methods. On discussion with the patients and their families, the decision was made to proceed with vertebral body augmentation followed by placement of an interspinous process spacer in the same sitting.

在与患者及其家属协商后，我们决定同时采用椎体成形术联合植入棘突间装置对她们进行治疗。

Although there is fair evidence that articial disc replacement is similarly effective compared to fusion for single level degenerative disc disease and that an interspinous spacer device is superior to nonsurgical therapy for 1- or 2-level spinal stenosis with symptoms relieved with forward exion, insufcient evidence exists to judge longterm benets or harms.

尽管已有相当的证据证明人工椎间盘置换治疗单节段脊柱退变疾病具有和融合手术类似的疗效，也有相当的证据证明棘突间支架治疗1～2个节段伴间歇性跛行的椎管狭窄的疗效优于非手术治疗，但以上都缺乏长期随访的证据。

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。

Furthermore, out of 497 fAFLP markers, 80 special bands were found to be able to distinguish the four groups from each other and may be applied for germplasm characterization and molecular assistant classification of Meretrix clam.4 Molecular classification of two species of Meretrix clam based on fAFLP and ITS sequences4.1 The results of fAFLP maker analysis of S, G and W showed that each group had their own specific loci among which there were 53 special loci in W group, much more than those of S group (14) and G group (21). Among the 53 loci, nine were all dominant loci. These unique loci could be taken as molecular markers to distinguish W from other groups. The genetic similarity indexes and distance matrix between S and G groups were 0.9585 and 0.0424 respectively, but the genetic similarity indexes and distance matrix between W group and S or G group was 0.7939 or 0.7941, and 0.2308 or 0.2305 respectively. The results revealed that significant difference existed between W and S or G groups in molecular genetic structure. The phylogenetic trees by the methods of UPGMA and NJ also indicated that S and G populations were very closely related, while W population was a relatively independent cluster, lying beyond the species which S and G belong to.4.2 The internal transcribed spacer region of the rDNA from S group, G group and W group were PCR amplified and sequenced. The results showed that the size of ITS ranged between 1266-1269bp in W group, while those in G and S groups were 1614bp and 1520bp respectively. The GC content ranged 62.32-62.62% in W group while it was 61.77% in G group. The genetic distances between three populations of W group were 0.001～0.003, but it was 0.110 or 0.147 respectively between W group and G group or S group. Phylogenetic trees by NJ method also showed that G group was very closely related to S group, while W group was a relatively independent cluster.

在457个总扩增位点中找出了53个W的特有位点，远多于S群体(14)和G(21)群体，而且在53个特有位点中有9个出现频率为100%的位点，这些位点可以作为区分其它2个群体的特征性标记；S– G群体特有的位点有112个，其中有4个位点出现频率为100%，可作为S– G群体区别于W群体的特征性标记。S群体和G群体间的遗传相似性系数为0.9585，遗传距离只有0.0424，在NJ和UPGMA法构建的亲缘关系的树状图上均首先聚在一起，说明二者的亲缘关系很近，应属于种内群体间的关系；而W与S和G的遗传相似性系数均较小(0.7939和0.7941)，相对遗传距离很大而且十分相近(0.2308和0.2305)，在亲缘关系树状图上单独分出一支，也表明W与S和G群体间的亲缘关系较远。4.2 ITS序列比较分析通过对白壳文蛤、山东文蛤和广西文蛤的ITS序列扩增电泳、PCR-RFLP分析和ITS序列分析发现，W的ITS序列长度在1266-1269 bp，而S和与G的ITS序列总长度分别为1520 bp和1614 bp；从ITS1和ITS2长度来看，W分别为739-741 bp和316-317 bp，S为895 bp和414 bp，G为987 bp和416 bp；而从ITS碱基组成来看，W的GC含量在62.32-62.62%之间，而G群体为61.77%。W的3个壳色不同群体间的遗传距离仅0.001、0.002和0.003，S与G群体间的遗传距离是0.010，说明W群体内变异很小，而S与G群体间已出现明显的遗传分化，但还均属于种内群体间的遗传变异；而W与G和S的遗传距离分别达到0.110、0.147，两个类群差异显著，已远超出种内群体间的遗传变异。

The influence of the number of carbon atoms in flexible spacer on their mesomorphic state, clear temperature, phase-transition temperature is studied by using of DSC.

最后用DSC进行检测，考察了柔性链上碳原子数对介晶相态、清亮点温度和相转变温度的影响。

The sequences of internal transcribed spacer regions of nuclear ribosomal DNA of 9 samples of Nymphaea and related water lilies as outgroups were sequenced and assembled with the sequences in GenBank to analyze the specific and infraspecific relationships.

本文测定了睡莲属9个样品的核核糖体DNA ITS区序列，结合GenBank中获得睡莲类ITS序列，分析了这些样品间的亲缘关系。

Oscillatoriaceae ; rDNA Intergenic spacer region ; Sequence analyses ; Taxonomic significance

颤藻科； rDNA间隔区；序列分析；分类学意义

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。