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The effects of port injected n-heptane equivalence ratio and iso-octane direct injection timing are investigated experimentally and numerically. The results indicate that the combustion mode of iso-octane is dependant on the iso-octane direct injection timing corresponding to the stage of n-heptane HCCI combustion. In case of direct injection before the low temperature reaction of n-heptane, premixed combustion of the iso-octane occurs. In case of direct injection at the NTC period or the initial high temperature reaction stage of n-heptane, the iso-octane mainly undergoes premixed combustion.

进一步采用进气道预喷正庚烷，缸内直喷异辛烷，在没有火花点火和热EGR的辅助下利用预喷正庚烷HCCI燃烧产生活化热氛围的热作用和化学作用引燃缸内直喷高辛烷值燃料异辛烷，系统研究了不同预喷正庚烷当量比和缸内直喷时刻对直喷异辛烷燃烧模式、发动机效率和排放的影响，并用三维CFD耦合化学反应动力学对其燃烧过程进行数值模拟。

Lapsang Souchong the "Zheng-shan", and that the real "middle mountain areas," meaning that any of the tea produced in Mount Wuyi, are known as being the mountains, while the tea produced in the vicinity of Mount Wuyi, said outside the mountain.

正山小种之&正山&，及表明是真正的&高山地区所产&之意，凡是武夷山中所产的茶，均称作正山，而武夷山附近所产的茶称外山。

The relationship between orthogonal linear transformation and theorem of projection is demonstrated in the angle of mathematics analysis meanwhile validating its correctness through analyzing typical applications of transformation.

本文从数学分析的角度推证了正交变换与投影定理的内在联系，通过信号分析中典型正交变换的应用进行了验证，从而揭示了正交变换的内在本质。

The constraint conditions of quasi optimal and strict optimal OOCs constructed by recursive method are theoretic analyzed. Based on these constraint conditions, as the initial conditions of OOCs obtained by direct construction, some quasi optimal and strict optimal OOCs with larger code length and sizes are obtained by recursive method.

2理论研究了基于递归法构造准最佳和严格最佳光正交码的约束条件，在此基础上，以直接构造法得到的光正交码为初始条件，利用递归法构造了一些具有相同相关特性的码长更长、容量更大的准最佳和严格最佳光正交码。

NdFeB permanent magnets with high magnetic energy product, high application temperature and high corrosion resistance of Zhenghai Group are one of the important parts to directly drive the permanent magnetic wind motor sets.

正海集团自行设计制造了多条大型机电一体化生产线，应用于荫罩、永磁体等产品的生产，正海集团生产的高磁能积、高使用温度、高耐腐蚀性钕铁硼永磁体，是直接驱动永磁式风电机组的重要部件之一，正海集团在机械、自动化、永磁材料等领域的研发、设计和制造的专业人才达到150名，具备同风机制造企业进行合作的人才和原材料优势。

The correlation between independent variables and demographic data revealed a positive correlation between self —efficacy of prevent and management EIA and behavior of prevent and management EIA. There was a negative correlation between physical activities and gender, age and beginning age of asthma.

三预防及处理行为得分与预防及处理行为自我效能得分呈正相关；身体活动得分与性别、年龄及气喘开始年龄呈负相关；EIA预防及处理行为自我效能得分与目前有使用气管扩张剂呈正相关；EIA认知得分差与EIA处理行为自我效能得分差及身体活动得分差呈正相关。

TO DIN respiratory valve, the valve plate must be removed between the shock thing.

操作压力：A级正压：355Pa（36亳米水柱）负压：295Pa(30亳米水柱) B级正压：980Pa（100亳米水柱）负压：295Pa(30亳米水柱) C级正压：1765Pa（180亳米水柱）负压：295Pa(30亳米水柱)* GFQ全天候呼吸阀* GZW-I阻爆燃管道阻火器* QZF-89型铝合金全天候防火呼吸阀* QHXF-89防爆呼吸阀

Yan Xun is in South Korea should always belong to the kind of red-purple is not the embarrassment, in the universal search, will suddenly found out that he and so many big-name actors tocooperate, as indeed he himself has said, are extended in the past Hoon's role Most of all, was his easy, so the impact tothe audience is not clear that the extension is a matter of fact-hoon has been my very favorite Korean actor in the hope thatthe "East of Eden" more exciting to see him perform.

延正勋在韩国也应该属于那种一直半红不紫的尴尬境地，在万能里搜索下会突然发现原来他和那么多大牌演员们合作过，确实如他自己所说，延正勋在过去的角色里大多演得都安逸，所以给观众的冲击力并不明显，延正勋其实一直是我非常喜欢的韩国男演员希望在《伊甸之东》中看到他更多精彩的演出。

Outside her shabby cottage, old Mrs. Tailor was hanging out laundry on a wire line, unaware that some children lay hidden in the leaves of a nearby tree watching her every move.

在破败的小屋外，年迈的泰勒夫人正伸手将洗好的衣物一件一件地往一根绳上晾着，她根本没察觉到几个孩子正躲在附近一棵树上的树叶丛中，正注视着她的一举一动呐。

Moreover, we discuss the relationship between the residual norm of the quasi-refined approximate eigenpair and that of the refined eigenpair, and the quasi-refined biorthogonalization Lanczos algorithm is given. Some numerical experiments are carried on, and the results illustrate that the newalgorithm is superior to the classic one. 2.We propose the semi-refined biorthogonalization Lanczos method which is based on the refined projection idea.

将精化投影方法的思想和拟精化思想相结合，提出了拟精化双正交Lanczos方法，建立了拟精化近似特征对和精化近似特征对对应的残量范数之间的关系，给出了拟精化双正交 Lanczos算法，并进行了数值实验，具体算例表明，该算法比双正交Lanczos算法优越； 2。

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％。