查询词典 n.d.

Electron microscopic examination showed that the spinal cords were normal in group N and A, slight edema of mitochondria and endoplasmic reticulum in group B, loosened fibrous layers in medullary sheath, edema and local degeneration of neuraxis in group C,and shrinkage of nuclear membrane, serious edema of ER, vacuolus change of mitochondria and local demyelination in group D.

电镜结果显示，N组和A组脊髓超微结构正常；B组线粒体、内质网轻度水肿；C组脊髓髓鞘纤维板层结构疏松，轴索肿胀，局灶变性；D组脊髓神经元细胞核膜皱缩，线粒体空泡样变，内质网肿胀严重，局灶性脱髓鞘改变。

AIM To study the role of N-methyl-D-aspartic acid NMDA and non-NMDA receptors in processing nociceptive visceral information in the spinal cord.

目的 研究NMDA N-methyl-D-aspartic acid和非NMDA受体在介导脊髓内脏痛传入中的作用。

I n an a dress today he said he still opposes the ma n d a t o ry cut s in green house gas es en courage d by Eo ro pean nations.

在今天的演讲中他说他仍反对欧洲国家多鼓吹的大规模的减少温室气体的排放。

Objective To use an ischemical reperfusion injury rat model by pulsinelli-4-VO andobserve the changes of the expression of Glu, N-methy-D-asparagic acidreceptor subunits NR_1 and NR_(2B) and ability of learning and memory after procerebrum ischemic reperfusion injury, and approach the pathogenesy of learning andmemory disorder induced by ischemic reperfusion injury, and the intervention ofginsenoside Rg_2 on the learning and memory disorder after procerebrumischemic reperfusion injury.

目的利用pulsinelli四血管法体建立脑缺血／再灌注损伤模型，观察前脑缺血损伤后谷氨酸、N-甲基-D-天门冬氨酸受体亚单位NR_1、NR_(2B)表达的变化及学习记忆的改变，从兴奋性氨基酸的兴奋毒作用尤其是其受体的表达方面探讨脑缺血／再灌注损伤引起的学习记忆功能障碍的发生机制，并观察人参皂苷Rg_2对脑缺血缺氧损伤引起的学习记忆障碍的干预机制。

A new compound,3-_6-{4-(4-vinylene)pyridyl} stilbenyl}-N-ethylcarbazole was synthesized,and characterized by elemental analysis,IR,MS and ~(1)H NMR spectra.

报道一种新型的D-π-D-π-A结构的化合物：3-(4-溴苯乙烯基)-6-[(4-乙烯基吡啶)苯乙烯基]-N-乙基咔唑的合成。

Quinolinic acid is an endogenous neurotoxin, that activates the N-methyl-D-aspartate receptor and the biosynthesis of NAD+ precursor.

Quinolinic acid是一种内生性的神经毒素，活化N-methyl-D-aspartate接受器以及在生物合成NAD+的前驱物。

Mercury progressively kills neurons in the brain a n d damages the central nervous system leading to a wide range of neurological, cognitive, a n d senso ry dysfunctions.

汞渐进的杀死大脑中的神经细胞，损害中枢神经系统，导致大范围的神经、认知、感觉功能失调。

The removal of mercury reduces the senso ry disto rtion a n d overload, making the wo rld a safer, mo re readily understood, a n d mo re tolerable place again.

清除汞减少感觉扭曲和过载，使得这个世界更安全，更容易理解，更能够被忍受。

The principal best management practices for Costa Rica are: a well drained soil or a good drainage system in the field (banana yield is hurt with only a few hours of oxygen depletion in the root zone), b adequate control of nematodes, c adequate control of black sigatoka and d a good fertilizer program which includes rates of fertilizer equal or higher than 300-300-600 kg/ha/year of N- P2O5- K2O split in 12 applications during the year.

这些最好的管理措施为： a ）良好排水土壤或田间良好排水系统（根区缺氧几小时就会损害香蕉产量）， b ）有效地防治线虫， c ）有效地防治香蕉叶斑病和 d ）良好的施肥计划，施肥量等于或高于300-300-600公斤 N - P2O5- K2O /公顷/年，一年中分12次施入。

BACKGROUND: Spinally administered non- N -methyl-d-aspartate, but not NMDA, receptor antagonists block primary (1°) and secondary (2°) mechanical hyperalgesia and spontaneous pain after plantar incision.

背景：鞘内给予非 N-甲基-d-天冬氨酸受体拮抗剂可阻断足底切皮后原发性（1°）和继发性（2°）机械痛觉过敏和自发痛，而鞘内给予 NMDA 受体拮抗剂并无此作用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。