It shows that with increasing the bonding temperature and the holding time , a denser and more homogeneous microstructure consisting of less amount of pores are obtained , thereby leading to an increase in the tensile strength . an increase in 通过断口分析,认为w与cu合金的tlp连接实质是:与母材cu连接是cu 、 mn互扩散而形成的tlp连接;与母材w连接是cu - mn合金润湿w的钎焊连接。
The on - line liquid infiltration joining of 2d c / sic with different holding times at 1300t was carried out . the strength and the microstructure of the joints were studied , the joining mechanism was analyzed and the best holding time was obtained 在1300 、不同保温时间条件下对二维c sic复合材料进行连接，并进行强度测试及显微结构观察，分析连接机理，得到最佳保温时间。
The alloy component and the process parameters of the precision casting ( including the exit temperature from furnace , pouring temperature , mould preheating temperature , holding time , cooling form ) have a certain influence on the problem of the blade brittles 摘要合金含量、精铸工艺参数（出炉温度、浇铸温度、模壳预热温度、保温时间、冷却方式）对叶片脆性问题存在一定的影响。
3 . at the same holding time , when the holding temperature changed , the number of the long equal - area - circle diameter grain increased , and the average of the equal - area - circle diameter lengthened , the average of the roundness heightened 3 、相同保温时间条件下，改变等温温度，等积圆直径大的晶粒随温度的升高而增加，球状化程度高的晶粒数增多，平均等积圆直径和平均球化度同时增大。
Since a self - timed method is proposed to reduce the requirements of controller , the area is only 72mm x 43mm n a 0 . 25mm 1p5m cmos technology , and the capability of setup / hold time measurement is provided in the meanwhile 我们所提出的是一种自动时序的方法，也因此不需要额外的控制线路，所以在0 . 25微米的cmos制程下的面积只有72微米乘以43微米，同时我们的线路也能够量测设定时间与保持时间。
Effects of parameters ( pressure , temperature , holding time ) of tlp bonding of al mmcs on the joint shear strength have been studied . experimental and theoretical basis for joint with excellent mechanical properties have been provided 研究了瞬间液相连接时，压力、连接温度、保温时间等工艺参数对接头组织和性能的影响规律，为能实现碳化硅颗粒增强铝基复合材料的良好连接打下理论基础并提供实验依据。
The on - line liquid infiltration joining of 3d c / sic at different joining temperatures with the holding time of 45 min was carried out . the strength and the microstructure of the joints were studied , the joining mechanism was analyzed and the best joining temperature was obtained 在保温时间为45min 、不同连接温度条件下对三维c sic复合材料进行连接，并进行强度测试及显微结构观察，分析连接机理，得到最佳连接温度。
At the same time , considering slow - varying character of fire signal , feedback cybernetic thought and holding time of fire signal is introduced into fire detecting three - layer structure realizing method in this paper . thus better reaches the aim of early warning and reducing mis - warning 同时又考虑了火灾信号的渐变特性，将控制论的反馈思想和火灾信号持续时间也引入到火灾探测算法上，更好地达到了提早报警和降低误报警的目的。
There is a temperature raising period within several minutes after the power supply has been turn on and it is better to pack this unit into the accompanied holding bag for the sake of operation safety . , which can avoid the scald resulting from the higher temperature , while , the holding time can be prolonged 通电后数分钟内有一个温度上升的过程,为保证使用安全,宜把本产品装入附赠的保暖袋内，既可避免温度过高引起的烫伤,同时也可以延长保暖时间
At the same time , the dissertation discuss some important problems in simulation and verification in detail , such as hazards finding , inertia delay , feedback treatment , false paths discerning , setting up and holding time , critical path and shortest path 与此同时，本文还针对逻辑模拟验证中涉及到的冒险检测、惯性延迟、反馈处理、伪路径识别、建立与保持时间、关键路径和最短路径等关键问题进行了详细的论述，并分别设计了基于boole过程的算法。
