它被传送带直接送到了那边。It was taken right there on a conveyor belt.传送带下沉重的钢滚筒the heavy steel rollers under the conveyor belt把它从传送带上取下来.Lift it out of the conveyor belt....
a lioness guarding her cubs守护幼崽的母狮One morning when a vixen was taking her babies out of the lair, she saw a lioness and her cub.一天清早,雌狐狸带着她的孩子走出巢穴, 看见了母狮子和她的孩子.She was just looking around for her lover, when a lioness ap...
The threshold comparative method in detecting electrospark discharging status is improved.对检测电火花放电状态的阀值比较法作了改进.The primary step includes discharging mode design , signal design and channelization design of signalized int...