hull displacement

基本解释

A fast semi-displacement hull, on the other hand, is inefficient at low speeds when the transom tends to sink deeper in the water.
快速半排船体则是在低速航行时较为低效率，因为船身在低速航行时吃水更深。
Its innovative design is based on a semi-displacement hull that is quite narrow in the beam, allowing it to reach 30 knots or more with modest power.
它创新的设计在于拥有较窄船梁的半排水船体，使得其能够在中等动力下获得超过30节的航速。
This paper presented a new type of TRISWACH (Trimaran Small Waterplane Area Center Hull) with small length displacement volume ratio which has low powering requirements at high speed.
提出了一种阻力性能优良、船长排水量系数小的高速小水线面三体船型。
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