And then, we have two cases. So, the case where the system is invertible corresponds to the general situation where your three planes somehow all just intersect in one point.
有两种可能，一是方程组可逆，这就是一般情况了，这时三个平面交于一点。
So, remember, in the linear system, you can think of a linear system as asking you to find the intersection between three planes because each equation is the equation of a plane.
记住，线性方程组问题，可以理解为求三个平面的交，因为每个方程就是一个平面。
The three plane theory holds that there exist three planes in Chinese grammar study: syntax, semantics and pragmatics.
汉语语法研究的三个平面理论认为语法研究有三个层面：句法平面、语义层面、语用平面。
From the three planes of grammar research, case belongs to semantic plane.
从语法研究的三个平面来看，格属于语义平面。
IP-based service network is divided into three planes, bearing plane, signaling plane and application plane.
本文将IP业务网络系统按照功能分为三个平面承载面、信令面和业务面。
The essay discusses the definition of context and its dynamic features from three planes—logic plane, psychological plane and background plane in the framework of context.
从语境框架中的逻辑层、心理层和背景层三个平面来探讨话语的语境意义及其动态特征。
Three planes crashed within the two months.
两个月内发生了三起飞机失事事件。
Three planes were standing on the tarmac, waiting to take off.
三架飞机停在跑道上，等候起飞。
Three planes were standing on the tarmac, waiting to take off.
三架飞机停在跑道上，等候起飞。
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