This made Lucy the first female executive of a television production company and the three-camera system became a model for television sitcoms.

这使露西成为了第一个电视制作公司的女制片人，三位摄像机系统也成为了制作电视情景喜剧的模式。

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First, a mathematic model of adjustable reactors based on the magnetic flux control is established and a deep analysis is made.

首先建立了基于磁通控制的可调电抗器的通用数学模型，说明了可调电抗器的基本原理。

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First naval ordnance reliability model are made according to the function structure of naval ordnance.

本文首先根据舰炮的结构，建立了舰炮系统的功能框图，进而得出可靠性模型。

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Five years later,he made the first "Model T" automobile.

VOA: special.2010.03.21

Four specimens of the very first Winchester model ever made, an 1866 lever-acting sporting rifle, are in the sale.

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This gun, the first revolver model ever made by Colt , was called the Paterson because it was produced in Paterson, N.

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Fender's path was paved by privately held Gibson Guitar, which in 1993 registered the body shape of its popular Les Paul model, first made in 1952.

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