On the point of an upright needle he laid horizontally a fine steel bar, which could turn to the right and left like the magnetic needle in a compass-box..
他在一根垂直的针头顶点，设置了一根水平的钢制细棍，它可以左右转动，就像罗盘里的磁针那样。
2
Objective To compare the Safety box with the Needle cutter about the advantages and disadvantages in the safe injection area.
目的比较截针器和安全盒在保证安全注射方面的利弊。
3
Needle sets we look for are in flat, round plastic box and contain about 30 needles.