制约因素

In a word,it is more credible to use Mg/Ca ratio as climate psychrometer which has less external influence and it is questionable to use Sr/Ca and Ba/Ca ratios as one climate proxy because they are sensitive to many factors just like vegetation,soil microbe activity.

总体来看，石笋中Mg/Ca与Ba/Ca值的相关性很弱，可以认为分别受到降水和土壤微生物作用的影响，而Sr/Ca比值却可以与两者同时保持一定的正相关关系，表明其至少受到以上两种因素共同制约。

Secondly, it discussed profundity infection from times environment, school environment, jobenvironment, society environment, home environment, sociality environment. It means that environment affect and restrict pullulate of person with ability.Again, it analyzed trend of technology developmental.

其次，重点从社会时代环境、学校环境、工作环境、家庭环境、社交环境论述了环境因素对当代大学生社会适应能力的深刻影响，从而得出环境影响和制约着人才的成长。

The growth and yield of radish are not only environmentally influenced, but also restricted to agro-practices to some extent.

影响萝卜生长和产量形成的因素是多方面的，不仅有环境影响，也受栽培技术措施的制约。

We should take this opportunity to promote a rapid development of urban rail transit facilities.

对影响轨道交通建设发展的规划、资金、设备和技术标准等进行了分析，指出城市轨道交通具有的工程造价高、建设周期长、运营费用大的特点是制约其持续发展的重要因素。

In the light of delayed coke operation in Petrochina Jinzhou Petrochemical Company,and in consideration of the major factors affecting the longterm operation of the coke,the purpose of reducing coking in furnace tubes,coke tower gas pipelines and fractionators were all analyzed.

结合中国石油锦州石化公司延迟焦化装置的实际运行情况，从加热炉、焦炭塔大瓦斯管线和分馏塔结焦方面，分析了制约延迟焦化装置长周期运行的主要因素，在此基础上，给出了该装置为延长运转周期所采取的一些措施，并提出了改进建议。

Western of most labour force cannot reeducate sex is to restrict western the main factor; that the industry chooses western the choice basis of the industry of adaptability; dominant that the target that structure of the industry in development optimizes should be industrial structure and consumptive structure is the consumptive connection between the industry and man-made the diversity that growth pole fosters.

西部多数劳动力的不可再教育性是制约西部产业选择的重要因素；西部开发中产业结构优化的目标应是产业结构和消费结构的适应性；主导产业的选择依据是产业间的消费联系和人造增长极培育的多样性。

It will remain in a preliminary stage of socialism for a long time to come.

我国经济、社会的发展面临着人口、资源、环境等因素的制约。

Limited by factors of history and the developing level of security market, Treasury bond repo market in China has many problems.

中国的国债回购市场由于历史遗留因素及整个证券市场发展现状的制约，至今仍然存在许多问题。

One of the most important causes is that the exercise of the investigation authority is restrained by many factors.

其中一个很重要的原因就是检察机关侦查权的行使受到诸多因素的制约。

Therefore, it is necessary to use social right factor to restrict administrative power.

在这种情况下，应该调动社会权力的因素来达到制约行政权的目的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。