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The forces and moment for the model advancing forward with forced heave and forced pitch oscillation, and the hydrodynamic mass and damping coefficients for heave and pitch motion of the model are given. The results of numerical simulation are compared with the experimental data from Delft University of Technology, and show good agreement with them.

文中给出了以不同航速前进的船舶强制垂荡和纵摇的力与力矩，以及船舶垂荡和纵摇的附加质量系数和阻尼系数，并与DUT的试验数据进行了比较，二者吻合良好。

A small fore - and - aft sail hoisted ab aft the foremast and mainmast in a storm to keep a ship's bow to the wind.

斜桁纵帆升在前桅和主桅后面的小纵帆，在风暴中用来保持船头顶风

Results: SAH were presented real image of brain cistern and brain sulcus; Hemorrhage in the interhemispheric fissure cistern presented as a slightly widening hyperdense line; zigzag hyperdense line; elongation of hyperdense line within the anterior segment of the interhemispheric fissure, which was longer than 25mm or half the depth of the genu; thickening of the tentorial incisure margin.

结果：蛛网膜下腔出血可显示脑池、脑沟、脑裂呈高密度改变；纵裂池出血呈一稍宽线影；高密度"Z"字征；前纵裂池高密度线影延长或大于1／2胼胝体膝部深度或大于25mm；天幕缘切迹增厚。

CT scanning showing the interhemispheric hematoma exceeds 20 mL, or the interhemispheric hematoma is thicker than 1 cm can be referential to the diagnosis of ISH.

结论在大脑纵裂间积血达20 mL以上，或出血厚度超过1 cm，有明显的占位效应的，可以作为大脑间纵裂血肿诊断的一个参考标准。

Objective:To recognize CT appearances of the normal cerebral falxand interhemispheric fissure cistern so as to distinguish hemorrhage of the IHFC.

在实际应用中，外伤或脑血管疾病引起的纵裂池积血与正常大脑镰CT表现有时不易区别，为了正确认识大脑镰和纵裂池的正常CT表现。

A two - masted fore - and - aft - rigged sailing vessel similar to the ketch but having a smaller jigger mast stepped ab aft the rudder.

双桅帆船一种有纵帆装置的双桅航船，类似于双桅纵帆船，但在船尾的船舵放置有一种较小的补助帆桅

The layout of SGA92150 semi-trailer 's frame,the longitudinal and latitudinal beams and the joint of them are designed in this paper.

对SGA92150型半挂车车架的总体布置、纵梁、横梁、纵梁与横梁的连接等进行了设计。

By measuring the velocities of the P-wave and S-wave in three orthotropic directions including parallel and vertical directions to the stratum of the rock samples for slate, phyllite, mylonite and metasandstone, and based on the wave velocities of other rocks from the relevant studies, the anisotropic effect of wave velocity ratio of the P-wave and S-wave for most rocks is put forward.

通过对板岩、千枚岩、糜棱岩和变质砂岩等4种各向异性岩石在平行和垂直层理或板理的3个正交方向上进行大量的纵、横波波速试验，并结合对相关文献中己有岩石波速数据的深入分析，提出岩石介质纵、横波波速比的各向异性效应。这种效应广泛存在，其发育程度受到岩石类别的控制。

Pitch of the ship sometimes reaches a large pitch motion,which has a big influence on the navigability of the ship,the accuracy of the weapons and the life of the crew on the naval vessels.

针对现有减小船舶纵摇的方法和装置进行总结和分析，并在此基础之上详细介绍一种新型十字型的被动式抗纵摇舵。

The numerical results indicate that the operator splitting method effectively suppresses numerical oscillations in the cases of high air bearing number. The numerical results show that both air lift force and pitch moment increase with the ratio of the slider's rail height to the air film characteristic height and the air bearing number, and finally reaches to stable value.

比较在不同轴承数下的气浮力和纵倾力矩发现：同一轴承数下，气浮力随气膜特征厚度减小而增加；当磁头槽台高度与气膜特征厚度的比值相同时，气浮力随轴承数增大而逐渐增加直到达到某一值后保持不变；纵倾力矩随轴承数增加而增大到某个最大值后减小。

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。