主要原因

Is the main cause of genital herpes and is spread ...

是的主要原因，生殖器疱疹和传播。。。

This also is gesso decorates material to be in those who act the role of material to be abounded increasingly today, popular with each passing day main reason.

这也是石膏装饰材料在饰材日益丰富的今天，又日渐走俏的主要原因。

Temperature was the main factor influencing the seed germination of western celery and gibberellin played synergistic and promoting action.

结论］温度是影响西芹种子萌发的主要原因，赤霉素起协同促进作用。

The study has shown:(1) With increasing sediment depth and the woody giblets, the total organic carbon, the extraction of benzene , the total humic acids and the unhydrolyte are enhanced, while the hydrolyte is decreasing.(2) According to the GC-MS analysis, n-alkane,n-alkan-2-ones and n-alkanones are composed mainly of long-chains,such a result is thought to be characteristic of a herbaceous input from 2300a.B.P. n-alkanones exist in the samples may be considered as the evidence of microorganisms activity.(3) It is showed that the lipids is more sensitive to the climate change than the floristic. The proxy of the pollen spore of the peat stratum is different from the normal environment proxy. It is one of the main reasons that the sensitivity difference of the bog vegetation reacting to the climate isn't accordant with the log of the fat molecule fossil and biology fossil.(4) The transformation of the peat organic carbon is under the influence of temperature,acidity,organic material constituting, etc, and it showed the up-trend with the depth. In the short-term scale, the conversion of the peat organic carbon is effected by seasonal water,regional climate and vegetations; while in the long-term scale, it is controlled mainly by the climate.(5) According to the comparing the orderliness of organic compound,vegetation giblets with the depth to the characteristics of the peat molecule fossil with the section, in the development of this peatmire, 1500a B.P（210cm）is regard as the borderline of the late Holocene, the keynote of the front period is warm with several cold fluctuations, and the trend of the back period is dry and cold although there were several fluctuations.

研究表明：（1）随深度的增高及植物残体中木本残体的增多，总有机碳、苯萃取物、总腐植酸、不被水解物含量逐渐增高，而易水解物含量减少；（2）GC- MS分析显示，正构烷烃，直链烷基2-酮和正烷醇均以长链组分为主，揭示了该泥炭柱剖面2347a.B.P的母源输入以草本植物为主；甲基酮类和短链正烷醇的存在是微生物活性很大的生物证据；（3）通过有机分子标志物与孢粉、植物残体等指标的对比研究表明：脂类化合物对气候变化的反映要比植物种灵敏得多，不同沼泽植物对气候变化的敏感性的差异是脂类分子化石记录与生物大化石结果很难一致的主要原因之一；（4）泥炭有机碳的转化受到温度、酸度、有机物质组成等很多因素的影响，短时间尺度，泥炭有机碳的转化受季节性降水、地方气候和植被等因素的影响；长时间尺度，泥炭地有机碳的转化，受气候条件控制；（5）总结泥炭分子化石特征、泥炭有机质各组分含量及植物残体组成随深度的变异规律，分析结果显示该泥炭地层形成过程中，1500a B.P（210cm）可作为划分前后晚全新世的界线，前期的基调是气候偏暖，但又有几次偏干冷气候的反复，后期气候以干冷为主，其间虽有几次上升波动，但整体趋势不变。

However, this giddy joy soon gave way to a more sober view, for three main reasons.

然而，这种轻浮的快乐很快变成了更加严肃的思考，主要原因有三。

I come to the conclusions of the research and then put forward some suggestions to promote GIP success.

最后对我国政府投资项目还存的问题进行归纳，并初步分析产生这些问题的主要原因。

Carbon dioxide is a kind of glasshouse gases, which is the greatest cause of the global weather turning warmer.

摘 要：CO2作为一种温室气体，是全球气候变暖的主要原因。

Objective The author have studied 36 patients from 1989 to 1992 year who underwent combined management of glossectomy, mandibulectomy, radical neck dissection and repairing myocutaneous flap in order to find out the causes of sudden asphyxia, Of the 36 cases, 4 patients suffered asphyxia and four were dead.

目的 研究舌颌颈联合根治肌皮瓣修复后的患者突然窒息的主要原因。方法作者从1989～1992年对36例舌颌颈联合根治肌皮瓣修复术后的患者进行研究，其中4例发生窒息并且死亡。1。

Result The results showed that the glume of Johnsongrass had physical obstructing and chemical inhibiting effects on seed germination, and it was the major cause of seed dormancy.

颖片对假高粱种子的萌发具有物理阻碍和化学抑制作用，是导致其种子休眠的主要原因。

It is main reason of the ability of goblet cell synthesis ITF decline that the intestine structure is damaged postburn.

结论严重烧伤后肠粘膜结构受损是ITF合成下降的主要原因，肠道营养与静脉营养相比可降低伤后ITF特别是ITF二聚体下降的幅度。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。