Numerical control ( nc ) is a method of controlling the movements of machine components by directly inserting coded instructions in the form of numerical data ( numbers and letters ) into the system 数控( nc )是一种通过直接向系统输入数字数据(数字和字母)形式的编码指令以控制机床部件运动的方法。
This review aims at reporting the methods of controlling the corrosion caused by sulfate - reducing bacteria . moreover , the choice , application and recent development of the methods are discussed 摘要综述了硫酸盐还原菌腐蚀领域的多种防治措施,对各种方法的选择、应用以及研究进展等方面进行了探讨。
When it is not possible to eliminate stagnant water that may become breeding grounds of mosquitoes , and there are no alternative methods of control , larvicides may be applied to the water bodies 当积水无法清除并且成为蚊子滋生的温床时,又没有其他有效控制蚊患的方法,可将灭蚊幼虫剂施放于水体。
Design of the control laws for an automatic terrain following pi and fuzzy controllers by using and ny method are designed for different feedback signals . a method of control height and height rate is presented 提出了一种新的跟随控制方法:对高度和高度变化率的控制律设计方法,取得了很好的控制效果。
( 3 ) the principle of several methods of chaos control and its advantage and disadvantage are summarized , and methods of controlling of chaos suitable for dc / dc converters are demonstrated ( 3 )对非线性控制和混沌控制的若干方法的原理和优缺点进行总结,并介绍现有的用于dc / dc变换器混沌控制的方法和特点。
The effects of abs resin shrinkage during prototyping on dimensional precision of workpiece and the method of control and compensation over shrinkage have been studied theoretically and experimentally 首先通过理论和实验研究了成型过程中abs树脂材料收缩对零件尺寸精度的影响,以及收缩的控制与补偿方法。
The method of controlling the a / f combines the open and closed loop systems and gradually improves the accuracy of the lpg injection duty ratio by rough regulation , smooth regulation and micro - regulation 本文采用开闭环互相结合,粗、细、微调逐步精确喷气占空比的控制方式研制了lpg发动机空燃比控制器。
On the respect of congestion control , at the same time of making some improvement on flid , a method of controlling total receiving flow of host adjusting to its performance is put forward in this paper 在拥塞控制上,本文对flid方法作了改进,同时提出根据不同的主机性能配置,控制总的接收流量,从而提高了接收效率。
These are a great deal of problem on the method of control investment in the preiod of design which is not resolved , although inportance of investment control in the design phase in often mentioned in academic cycle 长期以来,理论界对于设计阶段投资控制的重要性提得较多,而对于设计阶段投资控制的方法,还有大量的问题没有解决。
It is very important in basic construction . but because its method of control is traditional which is controled by a skillful operator , this is hard to the operators and some special effects are not exact enough 然而由于其控制方式一直没有多大的改进,主要由熟练工人操作控制,因此不仅对操作员来讲劳动强度大,而且在挖掘特定轨迹时精度不够。