查询词典 concentrations

At 48h after operation, there were no significant difference in the concentrations among the different groups, and the concentrations were not significantly different from those before operation. Conclusion From the aspect of inhibiting postoperative stress, PCEA is superior to PCSA in spite of facileness for PCSA, and preadministration is better than postadministration for PCEA.

PCEA和PCSA均可达到较为满意的镇痛效果，两者VAS比较无显著差异（P＞0.05），但PCEA在抑制病人术后的应激反应方面优于PCSA，而且行PCEA又以超前镇痛为好。

At 48h after operation, there were no significant difference in the concentrations among the different groups, and the concentrations were not significantly different from those before operation. Conclusion From the aspect of inhibiting postoperatie stress, PCEA is superior to PCSA in spite of facileness for PCSA, and preadministration is better than postadministration for PCEA.

PCEA和PCSA均可达到较为满意的镇痛效果，两者AS比较无显著差异（P＞0.05），但PCEA在抑制病人术后的应激反应方面优于PCSA，而且行PCEA又以超前镇痛为好。

Total Hg concentrations in the fish with fork length smaller than 170 cm were not significantly different between samples from both oceans, whereas Hg concentrations in the size groups with FL larger than 171 cm from Atlantic Ocean showed higher value than those from the Indian Ocean.

但发现两洋区尾叉长小於170cm个体间的总汞浓度並无显著差异，而尾叉长大於171cm的个体则呈现大西洋渔获者的总汞浓度高於印度洋者。

Abstract］ objective to identify the relationship between serum homocysteine and carotid artery atherosclerosis in patients with cerebral infarction and effects of foliate,methylcobalamin.methods the concentrations of hcy were determined by means of fluorescence polarization immunoassay and carotid arteries was examined with color doppler ultrasound in 165 patients with cerebral infarction.the subjects were divided into 4 groups according to the severity of lesion of carotid artery.the concentrations of hcy were compared in different groups.the patients with hyperhomocysteinemia received foliate and methylcobalamin.results when lesion of carotid artery became severer,serum hcy was higher.the intima medial thicknesses of carotid artery were significantly decreased in patients with hyperhomocysteinemia who received foliate and methylcobalamin for two years.conclusion hyperhomocysteinemia may play an important role in development of carotid artery atherosclerosis.the intervention of foliate and methylcobalamin may reduce carotid artery atherosclerosis.

摘要］ 目的探讨脑梗死患者颈动脉病变与血清同型半胱氨酸水平的关系及叶酸、甲钴胺长期干预对其影响。方法对165例急性脑梗死患者进行血清hcy的测定及颈动脉超声检查，并按动脉硬化的程度分组，比较不同程度颈动脉粥样硬化患者hcy水平，部分高hcy血症患者给予叶酸、甲钴胺干预，随访2年。结果随着颈动脉病变程度的加重，血清hcy浓度呈上升趋势，高hcy血症干预者动脉内中膜厚度明显减小。结论高hcy血症对颈动脉粥样硬化的形成起重要作用，长期给予叶酸、甲钴胺干预可能减轻颈动脉粥样硬化。

MATERIALS AND METHODS: The root tips of Vicia faba were treated with different concentrations of sodium sulfite and sodium nitrite (in the concentrations of 25;50;100;200;400 mg/L) with distilled water as control for four hours.The root tips of Vicia faba were stained with carbol fuchsin and examined. The micronucleus rate and the rate of chromosome aberration were determined within root tip cells of Vicia faba.

材料与方法：用不同浓度的亚硫酸钠和亚硝酸钠(25、50、100、 200、400 mg/L)分别处理蚕豆根尖4 h，并以蒸馏水作为对照，用石炭酸品红染液染色，分别观察、测定蚕豆根尖细胞的微核率和染色体畸变率。

The main factors influencing the gynogenesis of the unfertilized ovary of strawberry were genotypes, kinds and concentrations of hormones, sucrose concentrations, the time of cold pretreatment, growth environment and development state and culture conditions.

基因型、激素的种类和浓度、蔗糖浓度、低温预处理时间、材料生长环境及发育状况、培养条件等是影响诱导草莓未受精子房雌核发育的主要因素。

Different kinds of organic solvents and the concentrations of HAC had significant effect on the separation, while concentrations of NaAC had a little effect.

其中，有机溶剂和醋酸的浓度对分离可产生显著的影响，而醋酸钠的浓度对分离的影响相对较小。

The results indicated that the inhibited concentrations of kanamycin of adventitious bud formation of Helianthus annus were 75 mg/L and 100 mg/L, when the carbenicillin was used in the transformation procedure; the concentrations was 300 mg/L when the growth of agrobacterium could be effectively inhibited. At the same time, the induction and growth of adventitious bud were not remarkably injured.

在以卡那霉素为抗性选择标记时，对油葵不定芽起完全抑制作用的Km临界浓度在75~100 mg/L；在以羧节青霉素为抑菌剂用于油葵遗传转化试验时，其浓度为300 mg/L时即可有效抑制农杆菌的生长，同时又不会对不定芽的诱导及生长产生明显的伤害作用。

Purposes: To observe intakes of 〓p-sodium-orthophosphate and 〓P-chromium- orthophosphate at various concentrations by brain gliomas cell; To make thorough inquiry of the inhibition to the SHG44 cell by 〓P-sodium-orthophosphate and 〓P-chromium-orthophosphate at various concentrations; To find out the regularities about the accumulation and elimination in the major organs of rats after inter-brain injection with 〓P-sodium-orthophosphate and 〓P-chromic-orthophosphate; To investigate the therapeutic effects of intert-injection with 〓p-chromium-orthophosphate on the neoplasia transplanted in the brain and hypoderma; To estimate the absorbed dose of the neoplasia body in rats after internal radiation; To study the pathological changes in the rat cells and tissues caused by the radiation exposure from 〓p.

目的：观察人脑胶质瘤SHG44细胞对不同浓度的〓P-磷酸钠和〓P-磷酸铬的摄取；探讨不同浓度〓p-磷酸钠和〓p-磷酸铬对SHG44细胞生长的抑制；揭示〓p-磷酸钠和〓p-磷酸铬在大鼠颅内注射在时全身主要脏器的蓄积与排除规律；观察〓p-磷酸铬大鼠颅内瘤体、皮下瘤体内注射的治疗效果；估算大鼠瘤体组织的吸收剂量；观察〓p照射引起的细胞及组织的病理学改变，为临床脑胶质瘤内照射治疗提供实验依据和吸收剂量计算方法。

The concentrations of isopentane, 2-methyl-pentane, pentane and 3-methyl-pentane which are from automobile exhaust and gasoline evaporation were highest in alkanes. Benzene/toluene ratio was close to 0.5 which is the characteristic value of automobile exhaust. The concentrations of pinene and isoprene were highest in alkenes.

烷烃类物质中异戊烷、2-甲基戊烷、正戊烷和3-甲基戊烷等机动车尾气或汽油挥发特征性物质浓度最高；芳香烃类物质中苯／甲苯的特征比值略高于机动车尾气排放特征比值0.5；烯烃类物质以植物排放的蒎烯、异戊二烯为主。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。