时期划分

The combustion events in the swirl chamber and the main chamber are processed differently. The combustion in the swirl chamber is broken into three phases: low temperature ignition, high temperature premixed combustion and flamelet diffusion combustion, while the combustion in the main chamber is only considered as flamelet diffusion combustion. The Shell ignition model, global Arrhenius equation and coherent flamelet model are used to describe low temperature ignition kinetics, high temperature premixed kinetics combustion and flamelet diffusion combustion respectively.

把涡流室式柴油机不同区域与不同时期的燃烧过程分开处理，将涡流室中的燃烧过程划分为三个性质不同但相互重叠的阶段：用Shell着火模型模拟的低温着火化学动力学反应阶段，用Arrhenius方程模拟的高温预混燃烧化学动力学反应阶段和用相关火焰微元模型模拟的扩散燃烧阶段，认为主燃烧室的燃烧只有相关火焰微元的扩散燃烧阶段。

The intersex development can be divided into three periods:early,middle and late period.

黄鳝的雄性性成熟发育也可以划分为六个时期，雄性发育为多周期类型。

Result The growth of the subterranean organs of Curcuma longa can be divided into five phases:root system growth,rhizome formation,rhizome intumescence-root tuber formation,rhizome dry matter accumulation-root tuber intumescence and root tuber dry matter accumulation.

结果：将黄丝郁金的地下器官形态发育划分为五个时期，即根系发育期、根茎形成期、根茎膨大－块根形成期、根茎干物质积累－块根膨大期、块根干物质积累期。

This article has studied the evolution of the financial credit,and divided the financial credit into five phases,moralization,legalization, commercialization,securitization and risk mercerization,each phase,the risk of financial credit is different.

本文研究了金融信用的演进历程，根据不同发展时期的特征，将金融信用的发展划分为五个阶段：道德化、法制化、商业化、证券化及风险的市场化阶段。

Pat Metheny's debut studio album is a good one, a trio date that finds him already laying down the distinctively cottony, slightly withdrawn tone and asymmetrical phrasing that would serve him well through most of the swerves in direction ahead.

Pat Metheny首张录制专辑是一张优秀的作品，标志着他已进入一个三重奏的时期：我们可以发现，他已经放弃那种特别柔和、略带冷漠的调子，以及划分得参差不齐的乐句；这将有助于他顺利通过未来的转型期。

Piaget's psychological development of children into the first stage, the children thinking infancy.

皮亚杰划分的儿童心理发展的第一个阶段，是儿童思维的萌芽时期。

From the view of mathematical tools used in the investigation of probability, this paper divides the history of the theory into stages and attempts to analysis the characteristic of each stage.

本文从概率研究所使用的数学工具这一角度，尝试对概率论的历史进行划分，并且试图分析每个时期的特征。从历史上看，概率论经历了三个主要发展阶段。

Inflorescence differentiation can be divided into 6 phases: primary, rundlet primordium, floret primordium, pistil and stamen primordium, initial reproduction structure and pollen maturation.

根据观察结果，将北柴胡花序分化进程划分为初生期、小伞原基分化期、小花原基分化期、雌雄蕊原基分化期、生殖结构分化始期和花粉粒完熟期6个时期。

According to the change of chromatin and morphology of cells, the spermatogenesis could be divided into five stages: spermatogonium, primary spermatocyte,secondary spermatocyte, spermatid and spermatozoon.

利用透射电镜观察秀丽白虾的精子发生，并根据染色质及细胞形态的变化将精子发生的全过程划分为五个时期，即精原细胞、初级精母细胞、次级精母细胞、精细胞和精子。

Mineralized materials can be leached out from them by supergene water.and each types of ore deposits will be formed at different palaeogeography circumstances.

把玄武岩划分为三个主要的喷发旋回，编制了各个喷发旋回的岩相古地理图，表明不同时期玄武岩的形成环境不同并有着不同的分布范围。

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％。