Voluntary blood donors usually donate 200 ml of blood each time. According to this calculation, if 6 people participate in voluntary blood donation, how many milliliters of blood can be collected in total?
义务献血者每次献血量一般是200毫升．照这样计算，如果有6人参加义务献血，一共可以采集血液多少毫升？
<gadget id="calculator">200 * 6</gadget>
<output>1_200</output>

<result>1_200</result>