pay.load

payload的音标和读音：
DJ音标发音： [ˈpeiˌloud]
KK音标发音： [ˈpeˌlod]

payload的词性：
n.（名词）

1. The revenue-producing part of a cargo.
有用载重量：载运货物中的创造收入部分

2. The total weight of passengers and cargo that an aircraft carries or can carry.
有效负荷：飞机负荷或所能载运的旅客和货物总重

3. The total weight of the instruments, crew, and life-support systems that a spacecraft carries or can carry.
飞船有效载荷：宇宙飞船载运的或所能载运的工具、人员和维持生命的系统的总重量

4. The passengers, crew, instruments, or equipment carried by an aircraft, a spacecraft, or a rocket.
载运物：飞机、宇宙飞船或火箭载运的旅客、工作人员、器械或装备

5. The explosive charge carried in the warhead of a missile.
导弹有效载荷：导弹弹头所带的炸药当量