It took him almost 11 hours, but the gourd was mostly watertight all the way to Napoleon, Missouri, where he intentionally sank the vessel because a boat ramp wasn't available.
他花了近 11 个小时，但在运往密苏里州拿破仑的途中，葫芦基本上是不漏水的，他在那里故意沉没了船只，因为那里没有可用的船坡道。
Boat ramp
原声例句
The World From A to Z
英语百科
Slipway
（重定向自Boat ramp）
A slipway, also known as boat ramp or launch, is a ramp on the shore by which ships or boats can be moved to and from the water. They are used for building and repairing ships and boats. They are also used for launching and retrieving small boats on trailers towed by automobiles and flying boats on their undercarriage.
- low speed Francis turbine的意思
- low speed gear的意思
- low speed handling的意思
- low speed heavy cut的意思
- low speed high torque hydraulic motor的意思
- low speed high torque hydraulic pump的意思
- low speed high torque oil motor的意思
- low speed high torque turbodrill的意思
- low speed indicator的意思
- low speed jet的意思
- low speed knocking的意思
- low speed large capacity centrifuge的意思
- low speed lens的意思
- low speed line adapter的意思
- low speed logic的意思
- low speed machine的意思
- low speed magnetic tape controller的意思
- lowspeed magnetic tape controller的意思
- low speed magnetic tape unit的意思
- low speed maneuverability的意思
- low speed memory的意思
- low speed mill的意思
- low speed morse的意思
- lowspeed motor的意思
- low speed motor的意思