Part Four Track and Field.

第四章田径。

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GigBaby! Four track recorder, metronome, drum machine.

四轨录音机，节拍器，鼓机。

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In this paper, the automatic level control system for four track concrete paver is researched.

本文对四履带滑模式水泥混凝土摊铺机自动找平控制系统进行了研究。

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Four years later at the Turin Olympics, Ohno won three short track speed skating medals, a gold in the 500 meters, and bronze in the 1,000 meters and 5,000-meter relay.

VOA: standard.2010.02.23

In addition to Bolt, who claimed the title last year and Federer, who has won it four times in the past, Ethiopian track star Kenesisa Bekele, Spanish cycling champion Alberto Contador, Argentinian football hero Lionel Messi and motor cycling's Valentino Rossi of Italy are also in the running.

VOA: standard.2010.02.11

Four track meets and six races later, Robinson was an Olympic champion and a joint world record-holder.

CNN: Golden girl: The first Olympic speed queen

Four track coaches (who are also teachers at Cascade) are alleged to have responded by making the athletes who missed practice do multiple laps around the track as punishment.

FORBES: Blistering Punishment Drill Leads School To Call For Track Coaches' Resignations

Racer Sanna explained from the driver's seat that to go above 200 mph (322 kmph), I needed to be in the far outside lane because, of the four track lanes, it is banked the steepest (12 degrees).

FORBES: Magazine Article