查询词典 initiation

We tested the hypothesis that CSE results in more extensive cephalad sensory blockade than SSS anesthesia and that loss-of-resistance during initiation of CSE anesthesia increases CSF pressure compared with SSS.

我们验证了腰硬联合麻醉比单次注射腰麻产生更广的向头端的感觉阻滞和在腰硬联合麻醉开始阻力消失时脑脊液压力比单次注射腰麻高这一假设。

The initiation part of internal carotid artery and vagus were anatomized to find the depth of anesthetic infiltration in them. The cardiovascular effects of the dogs were observed during the carotid sinus chirapsia or stimulating vagus before and after cervical plexus block.

杂种犬20只，通过对犬实施一点法颈深丛神经阻滞麻醉，解剖颈内动脉起始部和颈部迷走神经，观察该麻醉下颈动脉窦和颈部迷走神经被麻醉药物浸润情况；观察麻醉前后颈动脉窦按摩，及麻醉后刺激颈部迷走神经对犬血压及心率的影响。

The two-dimensional plane shock wave focusing with the parabolic reflectors in combustive gases is numerically simulated, and the ignition characteristics of the detonation initiation are investigated.

数值模拟了二维平面激波从抛物面上反射在可燃气体中聚焦的过程，研究了形成爆轰波的点火特性。

The floral morphogenesis of Coptis was observed under scanning electron microscopy. The initiation of all floral organs of the genus is spiral, the petal primordia are slightly retarded, the developmental sequence of the stamens is centripetal,the carpel primordia are conduplicate (i.e., horse-shoe shaped), the ovaries are half closed and the ovary stalk is formed in the developmental process.

本文运用扫锚电子显微镜观察了黄连属植物花的形态发生和发育过程，结果表明，该属植物所有的花部器官均为螺旋状发生，雄蕊为向心式发育，花瓣原基有微弱的延迟发育，心皮原基为对折型，子房为半封闭类型，子房柄是在发育过程中形成的。

In this paper the author invented a new quick initiation system to initiate AM and DMC to copolymerize and get high molecular weight .

本文利用实验室自制的混合快速引发体系，并且通过对丙烯酰胺和和2-甲基丙烯酰氧乙基三甲基氯化铵两段共聚法，合成高分子量的PAM-DM C阳离子聚丙烯酰胺。

Results indicate that as the molecular mass of polyethylene glycol increases, the conductance is increased obviously, and the surface tension is decreased from 36.28 mN/m to 31.30 mN/m, while the cloud point is increased from 39.6 ℃ to 58.9 ℃. Their emulsifying abilities to BA, MMA and BMA are superior to that of OP-10, and the surfactants is homopolymerize or copolymerize with acrylate at 70 ℃ under the initiation of AIBN.

结果表明，随聚乙烯醇分子量的增加，非离子表面活性剂的电导率显著增加、表面张力由36.28 mN/m降低至31.30 mN/m、浊点由39.6 ℃增加至58.9 ℃，对丙烯酸丁酯、甲基丙烯酸甲酯和甲基丙烯酸丁酯的乳化能力均优于常用乳化剂OP-10，以AIBN作引发剂在70 ℃下既能均聚又可与丙烯酸酯进行共聚反应。

Three potential initiation processes were identified during the cumyl phenyl dithioacetate mediated acrylate polymerizations.

三个可能的启动过程期间，没有发现基苯基dithioacetate介丙烯酸聚合。

We investigated the effect of visiblelight on the UV-polymerization of diacetylene and an accelerationphenomenon of the visible-light on the monolayer polymerizationwas observed. It means that the visible-light can accelerate the chainpropagation but have no effect on the chain initiation, thus benefitthe producing diacetylene polymer with higher molecular weight.

考虑到双炔酸聚合过程中，链引发和链增长所需的激发波长不一样，前者的激发波长必须小于310 nm，而后者的激发波长在可见光区，我们因而在液面上测量了可见光对聚合反应的影响，发现可见光照的确能加快反应的进行，就是说，在链引发和链增长的竞争中，我们可以用可见光加快链增长过程，一定程度上增大分子量。

After the oxidative polymerization of DMP,styrene was in-situ polymerized under the initiation of dibenzoyl peroxide and dicumyl peroxide,finally thermodynamically compatible PPO/PS alloy was prepared.When styrene content was 50 wt%,for the synthesized PPO/PS alloy the yield and the weight-average molecular weight were determined to be 95%and 1.7×10~5 for PPO,93%and 2.0×10~5 for PS,respectively.The influence of the concentration of DMP and catalyst,molar ratio of N/Cu, oxygen partial pressure,NaOH concentration and temperature on the initial polymerization rate(R_0) of DMP was studied.It was found that the initial polymerization rate of DMP increased with the concentration of DMP and catalyst. The initial polymerization rate increased with the molar ratio of N/Cu at first and then decreased.

通过测定DMP氧化聚合过程中氧气吸收量随时间的变化，研究了DMP和催化剂浓度、N/Cu摩尔比、氧气分压、氢氧化钠浓度及温度对水介质中DMP氧化聚合初始速率的影响，发现DMP氧化聚合初始速率与氧气分压的0.1次方成正比；DMP氧化聚合初始速率随DMP和催化剂浓度及温度的增加而增加；随氢氧化钠浓度和N/Cu摩尔比的增加DMP氧化聚合初始速率先增加后降低。

The other was the Eleusinian Mysteries - initiation ceremonies for people joining the cult of Demeter and Persephone.

另外一个是依洛西斯秘密仪式——让人们加入崇拜得墨忒耳（掌农业，结婚，丰饶之女神）和珀尔塞福涅（宙斯之女，被冥王劫持娶作冥后）行列的初始仪式。

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。