层片

The PTK mode of excimer laser was used to ablate retinal sheet.Total 48 photoreceptor sheets were ablated with three depths and were studied by light and scanning electron microscope.

目的 探讨PTK切削方式下，准分子激光切削视网膜制备理想感光细胞片层所需的最佳切削深度。

The specimens can drip flaming particles that ignite the dry absorbent surgical cotton located 300 mm below the test specimen.

试片滴落的火焰分子会有短暂的燃烧，且会点燃300mm之下的乾燥的吸收性外科用棉花层。

Using transmission electron microscope, I had found that there were obvious differences in the content of chloroplast and amyloplast and in the structure of grana lamella between transformed and wild tobaccos.

以转基因植株为材料，对植株叶片进行亚显微结构的透射电镜观察，发现野生型烟草与转基因烟草中的叶绿体、淀粉粒含量以及叶绿体中的基粒片层结构明显不同。

In Surennuoer faulted zone, the authigenic mineral assemblage of dawsonite and ankerite are formed during the mutual action between CO2 fluids and sandstone, and then the reservoir properties of dawsonite-bearing sandstone becomes poorer.

苏仁诺尔断裂带CO2流体在与砂岩相互作用过程中，形成了片钠铝石和铁白石的自生矿物组合，导致研究区含片钠铭石砂岩储层物性变差。

Antihalation Backing: A dark layer coated on or in the film to absorb light that would otherwise be reflected back into the emulsion from the base.

在胶片上或胶片中涂的一层黑色涂层，以吸收光线，否则光线会从片基反射到乳剂上。

The peak in 1673 〓 present antiparallel pleated sheet structure in the main chains.

反β片层结构是非常稳定的蛋白质组成方式，检测结果告诉我们，半乳糖导致白内障的发生是引起蛋白质组成的变化，而没有改变蛋白质基本的空间亚结构的改变。

In the b-pleated sheet the polypeptides are more extended, and adjacent chains of amino acids are arranged antiparallel to each other, linked by hydrogen bonds between the C=O and NH groups of adjacent chains.

相比较而言，β片层具有更好的可延伸性，相邻的由氨基酸残基形成的肽链反向平行排列，同样以 C=O 和 NH 基团之间的氢键连接。

The molecular structure of ω-CTX SO3 is stabilized by three disulfide bridges and a short triple-stranded antiparallel β-sheet with four turns.

与其他ω-CTX溶液构象的比较指出它们的差别仅在于β-片层长度和β-转角类型不同。

It is now well understood that asparagine synthetase is composed of two parts: a wedge-shaped place in the two antiparallel β-overlapping layers near the N-terminus that functions in glutamine hydrolysis; a C-terminus responsible for binding of Mg2+ ATP and aspartate.

现又明确天冬酰胺合成酶是由两部分组成：N基末端的两个反平行式β-折叠片层中的楔形部分是负责水解谷氨酰胺的活性部位；C基末端负责结合Mg2+ATP和天冬氨酸。

The side section has only two layers——the underlining and interfacing around the armscye.

侧片只有两层，衬里和衬布。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。