| 1. | Since the manipulated objects of microinjection are all very small , the accuracy of microinjection determines the survival rate of cell
由于微注射操作对象都非常微小，注射操作的准确性关系到注射细胞的成活率。 |
| 2. | At present micromanipulation system is mainly used for microinjection . microinjection is a crucial means for gene injection in modem gene engineering
现有的微操作系统主要是用来进行微注射操作的，微注射是现代基因工程学中重要的基因导入手段。 |
| 3. | As a window to the transgenic microinjection system , vision system plays a role of information medium between microworld and macroworld . it directly affects the operation accuracy and efficiency
视觉系统是转基因微注射系统的眼睛，是微观世界与宏观世界间的信息桥梁，直接影响操作的准确性和效率。 |
| 4. | On the basis of the characteristics of the cell micro - images , three image processing methods are used separately in cell images " quick recognition and feature ' s snapping to get the fast detection of the injection volume by vision
本文根据微注射显微图像的特点，利用三种图像处理法，分别对细胞图像进行目标快速识别及特征提取，以实现微注射量的视觉快速检测。 |
| 5. | There are some shortcomings in the microinjection whose volume is controlled by manual , such as less effective , less precise and more sensitive to artificial factors , etc . all these keep the microinjection operation from being more popular and applicable
采用手动方式进行微注射量控制，存在效率低、准确性差以及受人为因素影响较大等不足，限制了这项技术的推广及应用。 |
| 6. | The following experiment ' s results show that , as the temperature increasing , the viscosity of the dna fluid is decreasing , as well as the resistance to its movement , so that the dead area of the controlling is narrowed and the controller is improved
实验结果表明，随着温度的升高， dna液的粘度减少，它的运动阻力也随之减少，微注射液的控制死区缩小，从而使控制器的性能得到了改善。 |
| 7. | To resolve the difficulty of installing flow sensors in the conventional microinjection system , based on the development status of mems and micro flow control technology , the possibility of constructing a kind of transgenic microinjection system is analyzed and explored
为了解决常规系统中布置反映实际出流信息的传感器的困难，结合微电子机械系统和微流量控制系统的发展现状，就构建基于mems的转基因微注射控制系统进行了可行性分析与探索。 |
| 8. | At present some volume controllers with high - qualities which can argely decrease the manual work of the microinjection volume control are put up with by several international biological companies . with the new devices , microinjection is turned into a half - automatic one . however , these devices are too expensive to many domestic research associations and societies of the gene engineering
目前国外各大生物仪器制造公司纷纷推出了性能较为先进的微注射量控制器，使注射量控制中的手工劳动的程度大大降低，实现了向半自动化控制的转化，但这些设备高昂的价格往往让国内的许多从事基因工程的单位和机构难以接受。 |
| 9. | Planning and designing a microinjection controller on its structure , parameters and circuit tolerance analysis , etc . aspects . based on the primitive electrical microinjection volume controller driven by air - pressure , an improved one with the pressure - keeping function is fabricated . the new controller prevents the dna - fluid from drawing - back by providing a keeping - pressure to it before or after the microinjection
( 2 )对微注射量控制器进行了系统、参数及容差等方面的方案设计，并在原有的基础上进行了改进，构建了带保压装置的气压电控式微注射量控制器，克服了原控制器在注射前或完成后易产生的dna液倒吸现象。 |
| 10. | 4 . microinjection is a delicate and precise operation suffered from the artificial factors of the operators ( such as healthy condition , mood at the time , etc ) , and also the surrounding conditions . so the manual work is inevitably replaced with an automatic one in this kind of devices
( 4 )微注射是一项精细的操作，其工作的质量和效率很容易受到操作者个人条件(如身体健康状况，当时的情绪等因素)的影响，也易于受到周围工作环境的影响，因此以自动代替人工，是此类设备发展的必然趋势。 |
