实际限制 meaning in English

physical constraint

There is no practical limit to the number of operators that can be combined into an expression , but an understanding of
对于可组合到表达式中的运算符的数量没有实际限制，但是需要理解
Practical limits , determined by usability and quota limitations imposed by the settings provider , will be much smaller
的上限的约束，但是实际限制由设置提供程序设定的可用性和配额限制确定会更小。
However , in the practice use , the research of the application methods to overcome the practice limit and to enhance the anti - disturb ability of the system is still a task of great challenge
但是在应用中，以突破实际限制和增强系统抗干扰性为目的的实践方法研究，仍然是一个具有挑战性的课题。
Other imperfections are due to the practical limits to which correction can be made for systematic effects , such as offset of a measuring instrument , drift in its characteristics between calibrations , personal bias in reading an analogue scale or the uncertainty of the value of a reference standard
其它非理想性因素是由于对系统效应的修正产生的实际限制，比如测量仪器的误差，两次校验之间的性质偏移，个人读取量数的偏差或者参考标准值的不确定性。