Rescuers used props to stop the roof of the tunnel collapsing.救援人员用支柱防止隧道顶塌陷。...the backdrop and props for a stage show.一场舞台剧的背景幕和道具Wood is still extensively used for props.木材仍广泛地用于支柱.I had two props in my life; one was ...
Exogenous estrogen . Continuous exposure to unopposed estrogen results in endometrial hyperplasia.外源性雌激素:长期暴露与无拮抗的雌激素环境下可导致内膜增生过长.In women, indole - 3 - carbinol may turn the estrogen associated with breast cancer into a...
The average UK coal seam is one metre thick.英国煤层的平均厚度为1米。Tack them together with a 1.5 cm seam.用1.5厘米的针脚将它们暂时缝上。Use vinyl seam adhesive where vinyls overlap.塑料布相叠处用塑料封口胶粘起来。...