奇偶测站分别交替采用“后前前后”(BFFB)和“前后后前”(FBBF)的测量模 式(aBFFB)是常用的观测和记录格式。B 表示“Back”即后视,F 表示“Forward”即前视。
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前前后后 Ins and Outs ; back and forth ; up and down ; Before and After
后前前后 BFFB
前前后后算法 forward-backward algorithm
前后前后 WSWSWS
前前后后演算法 forward-backward algorithm
后下前后下前 JKLU
装前卸后条款前后条款 before and after clause
达尔文时代的前前后后 before and after darwin
经过测量反应前和反应后实验前后的可乐pH值发现前后酸性没有发生变化，排除了简单的碳酸反应导致这喷泉影响的想法。
Measurements of the pH of the Coke before and after the experiments showed that its acidity did not change, ruling out the idea that a simple acid-base reaction drives the fountains.
前后肢的角度协调，有足够的角度，可以提供充分的前躯伸展性和后躯驱动力。
Angulation front and rear must be balanced and adequate to give forward reach and rear drive.
脑的容量是动态的，称为神经形成或可塑性，在记忆后形成前后前当比例的路线。
The brain's capacity for dynamic states, called neuroplasticity, or just plasticity, makes tracking the circuitry behind memories a task of near-epic proportions.
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