收缩血管的

Alcohol can dilate small blood vessels, which may lose their ability to constrict.

酒精会扩张细小的血管。这样就会使血管丧失收缩的能力。

Endothelial cells produce potent vasodilators and the most potent vasoconstrictor, endothelin.

内皮细胞产生强烈的血管扩张素和最强烈的血管收缩素――内皮素。

Ang II is a vasoconstrictor and growth-promoting substance, whereas bradykinin is a potent vasodilator and growth inhibitor.

Ang II 是一种使血管收缩和促进生长的物质，而BK 是使血管舒张和抑制生长的。

GA had no effect on SMA constriction induced by NE. The reactivity of SMA rings to myricetin was increased at 0, 0.5, 1 hour and 2 hours after shock, and it reached the peak at 2 hours, then it significantly decreased at 3 hours and 4 hours after shock.

结果 SMA血管环对NE的反应性表现为：休克0 h和0.5 h组明显高于正常对照组和其他休克时间点组，休克1 h和2 h组明显低于正常对照组和休克0 h和0.5 h组；18α-GA对NE诱导的SMA血管环收缩反应性无明显影响。

GA antagonized SMA constriction induced by myricetin. The antagonizing effect on myricetin in shock 1, 2 and 3 hours groups was more obvious than that in the other groups. CONCLUSION :At the early stage after hemorrhagic shock, the endothelium-dependent and independent vascular contractile response show a compensatory increase.

SMA血管环对杨梅黄酮的反应主要表现为：休克0、0.5、1和2 h组明显高于正常对照组，于休克2 h达最高点；休克3 h和4 h组明显低于正常对照组，运用18α-GA阻断MEGJ后，各组血管环的收缩反应性较18α-GA作用前明显下降，其中以休克1、2和3 h组下降幅度明显大于其他组。

Methods There were to patients of diabetes and 35 patients of non-diabetes in this study. The diameter, inter median thickness, peak systolic velocity, end diastolic velocity, pulsatility index, and resistance index of bilateral common femoral artery, superficial femoral artery, profunda femoral artery, popliteal artery,and pedal artery,and whether there was arteriosclerotic plaque or occlusive diseases were examined with color Doppler ultrasonogh.

糖尿病组70例，非糖尿病组35例，分别应用彩色多普勒超声观察双侧股总动脉、股浅动脉、股深动脉、腘动脉、足背动脉的血管内径、内－中膜的厚度、收缩期最大峰值血流速度、舒张期末血流速度、搏动指数、阻力指数；观察血管内有无硬化斑块、有无完全性和不完全性动脉闭塞。

If the cause is loss of volume, intravenous fluids should be supplemented; if vasodilatation (f. ex. due to large doses of epidural analgesia or habitual anti-hypertensive medication), the treatment is not fluid but is the dose adjustment of the provoking factor or vasoconstricting agents as e.g., Ephedrine.

如果低血压由液体不足引起，应增加静脉补液量；如果血管扩张（例如，因为大剂量硬膜外麻醉或习惯性的抗高血压治疗），则不需液体治疗而是调整扩血管药物的剂量，或使用血管收缩剂，比如麻黄碱。

Vasoconstrictive action : constriction of the blood vessels, via action of a nerve.

血管收缩行动：建设中的血管，经由行动的神经中枢。

SI can inhibit vasomotion in vaso-dilation status, but its mechanism is not mediated by endogenous NO.

血管运动得以恢复；在SI的有效作用时间内应用L—NMMA则不能使处于舒张状态的血管收缩。

Furthermore, allatostatins inhibit contraction of muscles in heart, dorsal vessel and oviducts.

AS能抑制前肠、中肠、后肠肌肉的收缩，导致昆虫厌食、生长延迟、死亡率上升等现象，此外，还能抑制心脏、背血管和输卵管等器官中肌肉的收缩。

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。