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Besides, because of diversity of biochip image, the shape of some spots can not be uniformly circular. Solved the problem of coarse segmentation and modification of deflexion angle, a method of tracking local spots profile—Template snake model has been proposed in the paper, it can recognize the target from roughness to precision step by step, so to guarantee the precision and efficiency of segmentation.

此外，由于生物芯片多样性特点，某些芯片样点外形并不一定是简单的孔径问题，本文在比较彻底地解决了样点粗分割及偏转角校正后，提出了局部区域的样点轮廓跟踪方法——Template snake模型，实现由粗到精的宏状多目标分层识别策略，既保证了样点分割的正确率，又加快了执行速度。

Fourth precision solution can be derived from two grid sets solution with a second precision central difference scheme by Richardson extrapolation. It reduces the amount of calculation. Uncertainty is determined from the discretization error analysis. A finer grid calculation is made to validate the extrapolation scheme.

对于2阶精度中心差分格式的2套网格数值解，用Richardson外推法可以得到4阶精度的解，其工作量比直接求解4阶离散方程的工作量减少许多；对于计算中的数值不确定度，用该方法分析了离散误差，并用逐次加密网格的方法探讨了外推法的合理性。

The increase of distance in circle neighborhood will decrease the model precision, in the mean while the increase of distance in rectangle neighborhood will increase the precision first then decrease.

环状邻域距离的增大会导致模拟精度的降低，面状邻域距离的增大则导致模拟精度先增后降。不同土地类型对邻域距离变化的敏感程度和反应皆不相同。

In the realization problem the properties of the single-precision realization, the double-precision realization and the integer realization are compared.

在混沌源的实现问题上，考虑了单精度实现、双精度实现和整数实现算法的性能比较。

Has both a single precision float type and double-precision double type.

语言有单精度和双精度两种浮点类型。

It provides low-cost single-precision and double-precision floating-point computation fully compliant with the ''

它提供低成本的单精度和倍精度浮点运算能力，并完全相容於''

If the IEEE double-precision significand has more precision than the internal representation it will be rounded to the internal representation using the round to nearest rule.

如果 IEEE 的双精确有效数字比内部表示法有更多的精确度，它将会被用四舍五入到最接近的规则来四舍五入成内部表示法。

If the significand of the internal representation of r has more precision than the IEEE double-precision format, it will be rounded using the round to nearest rule.

如果内部表示法 r 的有效位数比 IEEE 双精确格式有更多的精确度，它将会被以四舍五入到最近值规则来四舍五入。

Double-precision floating number operation was adopted in calculating flowmete and the hardware multiplier embedded in MSP430F149 was used in the program which enhanced the operation precision and speed.

采用双精度浮点数进行流量运算，并在程序中使用MSP430F149内置的硬件乘法器，提高了运算精度与运算速度。

In order to put the rack-head-on-machine measuring large gear method into practice, key problems, such as measuring device precision fix to the machine tool. precision angle measurement. eccentric compensation.

为了实施大型齿轮齿条形刃边测头在机测量方案，文中针对测量装置在机床上的精密安装与定位、精密角度测量、齿轮安装偏心补偿及测量数据处理等，这些对于大型齿轮测量具有共性特征的关键技术进行了系统分析。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"