时轴

Results The diagnostic accuracy of cut film with conventional AP and lateral views was 80.5%, the diagnostic accuracy of cine film with angulated views was 90.0% and the diagnostic accuracy of DSA using non-ionic contrast medium with angulated views was 96.5%.

结果用快速换片心血管造影设备和常规正侧位元投照时的儿童先天性心脏病心血管造影诊断符合率为80.5%，用电影心血管造影设备和轴位元成角投照技术时的造影诊断符合率为90.0%，采用数字减影心血管造影设备，轴位成角投照技术和非离子型对比剂时的造影诊断符合率为96.5%。

Seven types of dimetric drawing and three types of trimetric drawing are introducedby the author with an aim to help hasten the shift of the principles derived from varioustypes of dimetric and trimetric projections from the theoretical approach to the field ofpractical use,and to alleviate the embarrassing situation that only the simple methodscan be resorted to in drawing the pictorial projections by isometric drawing and cabinetdrawing.

为了使各种形式的正二测和正三测从理论研究转向实际应用，克服长期来人们在绘制轴测图时，多数只能采用正等测和斜二测等单调情况，以及提高绘图速度，本文推荐采用七种正二测和三种正三测，并设计一套绘制这十种正轴测的专用工具--轴测多角比例尺。本文提出一套近似作这十种正轴测坐标面上椭圆的方法和数据，使其既简便又准确。

In view of the general relationship between corporate income tax burden and scale of enterprises, in a rectangular coordinate system, suppose that ordinate axis stands for tax burden and abscissa axis stands for scale of enterprises, then the curve of tax burden of three cities' enterprises is like a flat S. that's to say, tax burden of the smallest enterprises is relatively high, that of enterprises scaled from 5 million to 10 million yuan is the lowest, and then tax burden increases with the scale going up. The trend continues until the scale of enterprises is beyond 100 million yuan and the top point appears. When the scale of enterprises expands to 800 million yuan, the tax burden starts to turn down and is lower than that when the scale of enterprises is beyond 100 million yuan.

就企业所得税负担与企业规模的一般关系看，如果以直角坐标系的纵轴表示税负，横轴表示企业规模，那么随着企业规模的变大，三城市企业的税负曲线呈一个平躺着的S形状，即规模最小的企业税负较高，500到1，000万元企业的税负率最低，然后企业的税负率开始随规模的增加而提高，这种趋势一直延续到企业规模超过1亿元时达到最高点，待企业规模继续扩张到8亿元左右时，税负开始回落，并将低于原先超过1亿元时的水平。

The method is :there are two perpendicular axes whose distance are controlled ,one is the axis of work table, the other is fixed with a microscope for aiming.

该测量方法是：两个相互垂直且间距可调的数控回转轴，一轴与工件的回转中心重合，另一轴上固定可移动的瞄准显微镜，当显微镜瞄准被测孔时，两轴的转角由各自的圆光栅测出，两轴之间的角度位置确定曲面壳体零件上小孔的孔位置，同时采用CCD摄像头，利用图象处理技术实现小孔的尺寸测量。

On the other hand, in spite of the severely distorted axis, the FoxD5-overexpressed embryos displayed neither somite nor muscle defects. Based on these results, we speculate that FoxD5 plays different roles in axis and somite formation. During somitogenesis, FoxD5 functions in the maintenance of the anteroposterior polarity of somites, and in turn plays roles in proper formation of somites.

另一方面，观察过量表现FoxD5的胚胎，发现体节及肌肉发育没有明显异常，但体轴发育则产生严重畸形的性状；根据上述观察结果，推测FoxD5可能在体节及体轴发育上扮演不同角色：在体轴发育时，FoxD5则可能参与於胚胎轴向决定；而在体节中，FoxD5具有维持体节前后极性进而促使体节正常形成之功能。

The influence of the eccentricity mass moment, position of mass center and the bearing stiffness to the vibration characteristics of the rotor system is discussed in detail; 3. To verify the exactness of FEM and learn the principle of vibration of dredge pump further, The orbit of the rotor shaft of the pump in the dredger is measured, the measurement results show: the repeat of the orbit of the rotor shaft is very bad when dredge pump is in the dredging mud condition.

模态分析确定了泥泵的振动特性；谐响应分析确定了泥泵转子轴在偏心力的作用下轴截面处的最大响应位移；研究了转子轴的质心位置、轴承刚度和质量偏心矩对转子轴振动特性的影响； 3、采用轴心轨迹法，实船测量了泥泵轴工作时振动响应值。

The feed motion is projected into each feed axis, and based on its mechanical model(motor driving torque/force, Inertial force and cutting force), the constraint relationship between feedrate, feed acceleration, and feed drive capabilities and toolpath geometric characteristics is derived. With this constraint model, the acceleration and deceleration of each axis can be limited within its capability.

将进给运动分解到各运动轴，根据机床进给轴的力学(电机驱动力／力矩、进给系统所受的惯性力及切削力)模型，推导了多轴联动加工时进给速度、加速度与各进给轴驱动能力以及加工路径几何特性之间的约束关系，使得加工过程中机床各运动轴的加减速始终处于其加工能力范围内。

Axial force balance: at work, Hermetic magnetic axial force from the hydraulic pump automatic balance, promoting disc only when you start and stop transient withstand axial thrust.

轴向力平衡：在工作时，海密梯克磁力泵的轴向力由水力自动平衡，推动盘只在启动和停车时承受瞬时的轴向推力作用。

The bearing inner ring and the axis tight fit, the outer ring bearing hole is a more loose with the non-separation-type bearings installed, press the bearings can be installed on the shaft, then shaft with bearings packed together into the bearing hole inside, if the bearing is small, can also be lighter than the soft metal hammer blow set

对无油轴承内圈与轴时紧配合、外圈轴承座孔是较松配合的非分离型轴承进行安装时，可用压力机将轴承先安装在轴上，然后将轴连同轴承一起装到轴承座孔内，若轴承较小时，也可用较软的金属锤轻击套

The performance curves of the experimental fan have been obtained and the flow field has been measured at the best efficiency point of each setting angle, in fixed plane downstream the rotor with a constant temperature hot-wire anemometer and a periodic multisampling and averaging technique by an on-line microcomputer.

对轴流式通风机在不同安装角时的流场变化进行了实验研究，得到了通风机的总性能曲线；并用固定在转子前、后测量平面的热线，测量了最高效率点处不同安装角时叶片通道进、出口轴向和切向速度的分布，从而能够清楚地了解到，通风机在安装角变化时，叶片通道进、出口截面流动结构的变化。

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％。