最大转速

According to the measured pressure data of the four-stroke small utility gasoline engine, the cyclical variations of the maximum pressure, the crank shaft angle at the maximum pressure, the mean indicated pressure and the largest pressure rise rate were analyzed. Meanwhile, the influences of ignition advance angle, load and rotation speed on cyclical variation were also investigated.

根据实测小型通用四冲程汽油机气缸压力，分析了最大爆发压力、最大爆发压力所对应曲轴转角、平均指示压力以及最大压力升高率等参数的循环波动特性，以及点火提前角、负荷和发动机转速对循环波动的影响。

Besides, the constraints such as the change rate of control variable are also considered.

其中包括：压气机喘振裕度限制，最高燃气温度限制，燃气发生器最高转速限制，动力涡轮最高转速限制，最大扭矩限制，燃烧富油熄火，贫油熄火限制等，另外还要考虑到工程实际中控制作用量的变化速率和变化幅度限制等约束条件。

Results show that the laminar flow length decreases with the increasing of rotating speed of mold.

计算结果表明：离心力场下充型时，熔体可保持的层流长度随转台转速的提高而减小；转台转速足够高时，最大倾角随转台转速的提高而增大。

The calculations of torsional vibration of crankshaft systems of 12V240ZJ6E diesel engines were carried out with TVCA programme and I deas software to obtain system natural vibration frequencies, vibration amplitudes of various concentric masses at different rotational speeds, and torques and torsional stress es of various crankshaft sections at different rotational speeds.

运用TVCA程序和Ⅰ deas软件对 12V2 4 0ZJ6E型柴油机轴系的扭转振动进行计算，求出系统的自振频率、各集中质量在不同转速下的振幅和各轴段在不同转速下的扭矩、扭转应力值，对自振频率、自由端振幅和扭转应力最大轴段进行了分析，对轴系的扭转振动情况作出总结与评

In this work,the finite friction force between the refuse and the trommel screen was taken into account,and the relationship between the hoisted angle and the rotary speed was co-related.

从生活垃圾在滚筒筛内的受力分析着手，考虑了物料与滚筒筛筛壁间的摩擦力，其为一有限值，推导出物料的提升角与滚筒筛转速的关系，且物料提升角的大小取决于物料静摩擦角的大小；认为无论滚筒筛的转速多大，物料的最大提升角都是固定不变的。

It simulation results proves that when the inner pipes in the concentric annulus pipes stand still, the turbulent flow nucleus area approaches inner pipes; and when inner pipes circumvolve, the turbulent flow nucleus area approaches outer pipes. The shearing velocity near the inner pipes is the biggest, and the shearing velocity increases with the velocity of the inner pipes increasing.

模拟结果表明：在同心环空管道中当内管静止时，紊流核心区即轴向速度最大值区域靠近内管壁；当内管旋转时，紊流核心区即轴向速度最大值区域靠近外管壁；靠近内管壁处的切向速度最大，且随着内管转速的增加切向速度增大。

One two-steps variable resonance pipe-length of induction system has been excogitated and the control strategy was put forward. Using this system, the max.

用长进气管则谐振转速低，可提高低速范围的充气效率，从而提高最大转矩；用短进气管则谐振转速高，可提高高速范围内的充气效率，从而提高最大功率。

The Engineer shall measure the RPM of the Main Engine, draft, compression pressure in the cylinder, maximum pressure in the cylinder, load indicator, exhaust temperature, scavenging pressure and temperature, rpm of the supercharger, etc. to grasp the operating condition of the Main Engine, and also calculate

轮机员须测取主机转速、汽缸内的压缩压力、最大爆发压力、负荷指示、排烟温度、扫气压力和温度、透平转速等，获得主机操作工况，同时计算主机输出功率、燃油消耗率、汽缸油消耗率等，根据计算准备&主机输出功率报告&，这些必须经过大管轮的检查和验证，并递交轮机长。

CNC lathe spindle speed due to very high, for ease of workpiece clamping, multi-use high-speed hydraulic power chuck, because it is in the production plant has passed a strict balance, with a high speed (speed limit up to 4000 ~ 6000r/min), high clamping force (push pull for the largest 2000 ~ 8000N), high-precision, adjusting claw convenience, through-hole, long life and so on.

由于数控车床主轴转速极高，为便于工件夹紧，多采用液压高速动力卡盘，因它在生产厂已通过了严格的平衡，具有高转速（极限转速可达4000~6000r/min）、高夹紧力（最大推拉力为2000~8000N）、高精度、调爪方便、通孔、使用寿命长等优点。

The results indicated Paecilomyces farinosus was aerobic fungus and rotate speed of rocking bed exceeded 150r/min would benefit the mycelium growth.Initial inoculum could affect the time of reaching maximal mycelial bioass and could not affect the maximal mycelial bioass.inoculum exceeding 5% would benefit t...

结果表明粉拟青霉是一种好气性真菌，摇床转速大于150r/min有利于该菌生长；接种量对菌丝最大产量影响不大，但是能够影响菌丝量达到最大值的时间；接种量大于5%，有利于菌丝产量迅速达到最大值；粉拟青霉菌在pH值为3～10的培养基中都能够生长，生长过程中能够分泌代谢产物主动调节pH值，该菌在pH为5～7的微酸环境中生长最快；液体发酵过程中粉拟青霉生长量与发酵时间的关系符合逻辑斯蒂生长模型。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。