向轴的

Thin-walled tube with closed section is commonly used in large space structures. In order to calculate the time-dependent temperature fields in these structures subjected to heat flux and emitting thermal energy by radiation, the temperature gradients along both the axes and circumferences of the tubes should be considered.

薄壁闭口管是大型空间结构中的常用元件，为准确地计算以其为组件的空间结构在太空辐射换热条件下的瞬态温度场，必须同时考虑沿管轴向与横截面周向两个方向的温度梯度。

The block of wood is 3/4" square and around 3 inches long. I made a slit in the wood with my hacksaw (the blade cut was the same as the brass) to about half way down the wood. I drilled a 1/4" hole perpandicular to the slit at the top of the wood and one just lower of the blade slit to house the shaft.

该座木材是3 / 4 "广场及约3英寸长，我作出了狭缝，在木材与我hacksaw，大约一半的方式下来的木材，我钻了一个1 / 4 "孔perpandicular向狭缝在顶端的木材和一只是较低的叶片狭缝向内务轴。

Based on the generalized potential variational principle of nonlinear elasticity theory with large deflection, the incomplete generalized potential energy functional with large deflection is established on the space coupling free vibration of collaborated system structure by considering the effect of axial compressive and shearing strain energy of stiffening girder.

摘要基于大位移非线性弹性理论的广义变分原理，考虑加劲梁轴向压缩应变能和剪切应变能的影响，建立了协作体系斜拉桥空间耦合自由振动的大位移不完全广义势能泛函，通过约束变分导出了协作体系斜拉桥的加劲主梁竖向挠曲振动微分方程。

The floral primordium is initially circular, along with the edge of which slight concaves occur. The outmost whorl of tepal primordia arises as a result of apical meristem division and the floral primordium then is in the shape of triangle. Two further whorls of tepal primordia arise in spiral acropetal sequence and are alternately arranged. When the innermost whorl of tepal primordia is at the late developmental stage, the foremost stamen primordia arise almost simultaneously in spiral acropetal succession and all of the stamen primordia are ultimately arranged in a triangle-cone form. Late in stamen primordium development, carpel primordia arise as same as the young stamen primordia and grow laterally. Grooves are present on the adaxial side of each carpel and develop into ventral sutures gradually closing up.

观光木的花原基最初为近圆形，随着顶端分生组织的活动，花原基边缘处出现浅凹，形成第一轮花被片原基，此时，花原基呈三角形排列，后两轮花被片原基依次发生，与前一轮互生；在内轮花被片发生的后期，最初几枚雄蕊原基几乎同时出现，呈螺旋状向顶发生，最后排列成三角圆锥状；雄蕊原基发育后期，心皮原基开始发育，形状与发育初期的雄蕊原基相似，随后心皮原基进行侧向生长，在近轴面出现浅凹，进而发育为凹槽，形成腹缝线，最后腹缝线完全愈合。

From 136 to 138, the expres- sion retrieved ventrally and expressed at the ventral half of the central tube (137) and the ventral horn especially in motor neurons (E7 and E8). Thus, the dorsal terminating axons relating to nociception and thermore?

到民至 Es麻Sema 3A的mRN的表达向腹侧撤退，主要在脊髓中央管周围的腹侧和前角运动神经元，这样使背侧投射性的痛温觉神经元轴突仅进入脊髓后角第 I、11层而不进一步向腹侧投射。

The computation analysis indicates that increasing the aperture of the concave focusing transducer, decreasing it's geometric focal length or raising it's central working frequency can improve the transverse and axial resolutions of the system simultaneously, but changing the dividing proportion of the transducer affects the two kinds of resolution differently. On compromisingly considering several factors including the exciting mode, the focusing ability and the radiation force effect, the concave focusing transducer should be divided into two equal-area parts.

计算研究表明：增大凹球面换能器的口径、减小几何焦距和提高中心频率均可以提高系统的侧向分辨率和轴向分辨率；但改变凹球面换能器的分割比例对两种分辨率影响不尽相同综合考虑超声换能器激励、聚焦性能以及产生的辐射力效果等因素，则换能器应按等辐射面积原则分割为宜。

During the total eclipse of Epsilon Aur, 18 and 6 spectra in the Hα region were taken in rapid succession on March 9 and 10, 1983 respectively by use of the Beticon at the Coude focus of the McDonald Observatory 2m telescope.

用美国麦克唐纳2.7米望远镜折轴分光仪的Reticon对H_α附近光谱区进行连续18次(3月9日)和6次(3月10日)观测，用计算机绘图和处理，得到了金属线的视向速度，H_α线的轮廓、视向速度、等值宽度的短时标变化。

The distribution of auriferous lodes were strictly jointly controlled by structures and lithological boundaries, which almost distributed along the shear zone developed nearly the core of the NS striking Akeshayi syncline hetween limestone and very low grade metamorphie sedimentary rock.

矿体分布范围及其产状明显受构造及岩性界面的联合控制(大致沿灰岩与浅变质碎屑岩界面发育的近NS向阿克萨依向斜轴附近的剪切断裂破碎带分布)。

It is analyzed the influence of electrical locomotive carbody canopy on the frequency of the carbody vertical bending vibration,the side wall transverse bending vibration and the carbody torsion vibration around the longitudinal axis.

分析了电力机车车体顶盖对车体垂向弯曲振动频率、侧墙横向弯曲振动频率、车体绕纵向轴扭转振动频率的影响，指出车体顶盖对车体垂向弯曲振动频率的影响是很小的，并且通过实例验证了这一点。

In this paper, thick-walled cylinder radial, circumferential, axial analysis, to avoid damage to thick-walled plastic cylinder to provide a reliable reference value.

文中对厚壁圆筒的径向，环向，轴向的分析，可以避免厚壁圆筒塑性破坏提供可靠的参考价值。

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。