下水船 meaning in English

downriver boat

In my own mind i resolved to be a downstream pilot and leave the up streaming to people dead to prudence .
我心里决定了要作一个开下水船的掌舵，而把上水活儿留给不知谨慎的人们。
Stress and deformation was calculated with the distribution to predict the security of structure where fem is used . with calculating in method of fem , the paper gives some advice on how to design structures of ship launching
将墩木支反力按照上述分布形式加载到三维有限元模型上进行计算，得出结构的应力响应和变形，然后校核是否满足要求，对下水船局部结构的安全性进行预报。