分子层

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。

During the process of long-time adaptive evolution, wetland plants adopted a series of special strategies to acclimate to salt stress. The main strategies are: 1 life history adjustment, e. g., to adjust seed germination time, implement seed dormancy and viviparity, and change reproductive manner to escape from direct salt stress, 2 morphological adjustment, e. g., to adjust biomass allocation pattern, age stem, defoliate, and carnify vegetative organs to isolate the redundant Na(superscript +) to the inactive-metabolism shoots or exclude the Na(superscript +)from tissues; 3 anatomic adjustment, e. g., to sink stoma, develop aerenchyma, and thicken cuticle and phellogen to maintain normal photosynthesis and respiration; 4 physiological and biochemical adjustment, e. g., to exclude and excrete salt, compartmentalize ions, adjust osmosis, do selective absorption, regulate hormones, and induce antioxidative enzymes to maintain the osmotic equilibrium and eliminate the active oxygen in cell; and 5 molecular level adjustment, e. g., to start up many salt-induced genes to regulate the metabolic responses to salt stress.

在长期的适应进化过程中，湿地植物形成了多种适应盐胁迫的策略，主要有：1生活史方面，植物可通过种子萌发时间的调整、种子体眠、胎生、繁殖方式的改变等逃避盐度的直接伤害；2形态学方面，植物可通过生物量分配模式的调整、茎的老化、落叶及营养器官的肉质化等将多余的Na隔离到代谢不活跃的茎中或将其排出体外；3解剖学方面，植物可通过气孔下陷、发达的通气组织、增加细胞木栓层、角质层及栅栏组织的厚度等以维持植物正常的光合作用和呼吸作用；4生理生化方面，植物可通过离子区隔化、拒盐、泌盐、选择性吸收、渗透调节、激素调节及抗氧化物酶的诱导等来维持细胞内正常的渗透压，清除胞内活性氧分子；5分子水平方面，植物可通过多种与盐胁迫相关的基因来调控细胞内的多种代谢反应。

With the assistance of molecular probes for reactive oxygen species, the production and localization of ROS derived from embryo, starch and aleurone layer of maize seeds with different ages were investigated under a laser scanning confocal microscope and a luminescence spectrometer.

借助活性氧发光分子探针，利用荧光光谱和激光共聚焦扫描显微技术，在不同年份的玉米种子吸胀早期，对其胚、淀粉和糊粉层细胞活性氧生成进行了定量和亚细胞定位分析。

METHODS: LASIK with Allegretto excimer laser and Moria-M2 microkeratome were performed on 1 100 patients with myopia (2 151 eyes).

使用Allegretto准分子激光机和Moria-M2微型角膜板层刀，连续对1 100例近视者（2 151眼）实施常规LASIK手术矫正。

The exchange of the electrovalence of the cupric ion has been testified by XPS-ESCA.Graphite and chloride in the stage structure,seem to be the conductor and insulator,which form the "sandwich" structure.This special structure produced a weak chemical bond belt and provided the carrier space in the perpendicular direction to the c-axis.These factors in and vertical to the direction of c-axis together increased the electrical properties.

GICs将良导体的石墨层与绝缘体的氯化物层在分子尺度上结合起来，所形成的阶结构相当于许多导体和绝缘体层组成的&三明治&结构，产生化学键薄弱的通道，提供了垂直c轴方向的载流子通道，隧道效应和格架空间提供了载流子活动空间，这些因素共同作用使得GICs的电导率成倍增加

The bilayer leaflet model for the structure of biomembranes may be simply state as follows: the basic construct of all biological membranes consists of a bimolecular lipid leaflet (i.e.a lipid bilayer for short) with sorbed non-lipid layers.

生物膜结构的双层模型可以简单地陈述如下：所有的生物膜基本结构均由一个双分子类脂层及吸附其上的非类脂层构成。

Then we can pre-empt problems by building the mold with special inserts to rotate the flows into double-stacked hot-runner manifolds through sequenced valve gates into pressure-monitored cavities fabricatedfrom a myriad of steels coated with exotic super-hard, lubricious, rust-proof platings applied with little heat and thinner than air.

然后，我们捷足先登：用特殊的嵌件构建模具，使料流旋转进入双层结构的热流道，再通过顺序浇口的开启注入到压力监控的模腔，这些模腔是用涂覆着超硬的、润滑的、防锈的电镀层制造的，这些电镀层绝热效果好，比空气分子还薄。

The terrace widths and step densities increase with increasing the GaAs layer thickness and then saturates.

原子力显微镜测试表明：在常规分子束外延情况下，GaAs外延层台阶的厚度和台面的宽度随衬底温度的升高而增加，增加外延层厚度会导致台阶的密度和台面的宽度增加然后饱和。

The outermost layer of Earth's atmosphere, lying above the thermosphere and extending thousands of kilometers into space, from which molecules having sufficient velocity can escape Earth's gravitation.

外逸层地球大气层的最外圈，位于热层之上，并向太空延展几千公里，在那里分子具有足够的速度可以逃出地球的吸引力

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。