讨论了布尔减和布尔除的定义以及逻辑函数在布尔减及非运算、布尔除及非运算完备集中的展开，给出了减-非和除-非逻辑函数的化简公式。
This paper discusses the definitions of Boolean subtraction and division, and the expansions of logic functions in Boolean subtraction- NOT and division- NOT complete sets.
不管哪种形式，都把线积分和二重积分联系在一起，来看看，能不能通过化简得到昨天的公式。
No matter which form it is, it relates a line integral to a double integral Let's just try to see if we can reduce it to the one we had yesterday.
建立了双频载波相位观测模型，并将其进行无电离层延迟化简，用最小二乘原理推导了天顶湿延迟的估值公式。
The dual-frequency carrier phase observation equation is built and ionosphere-free predigested, the estimate formula of zenith wet delay is deduced with least square method.
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