ball是什么意思

用法例句

Adoption of Bend Upward Bulbous Bow to Improve Resistance Performance in Ballast Trial Condition;

用上翘型球首改善压载试航状态阻力性能

The Research of Oil Marine Pollution & Protection and Ballast Monitoring System;

大型油船防污和压载监控系统研究

Thispapertakesthebulkcarriersasanexampletoillustrateaspecificintroductionabouttheballastingpreparations, precautionsaswellastheproceduresofballast.

压载水管理是船舶关键性操作之一,对船体结构强度和安全航行具有重要意义,文章以散装船为例,着重介绍了卸货过程中压载作业的准备工作、预防措施和操作过程。

Study on in-depth treatment of dirty ballast water from oil tankers by ozone oxidation;

应用臭氧氧化技术深度处理油船含油压载水的实验研究

Pilotscale experiment of using hydroxyl radicle to kill tiny organism in ship ballast water;

羟基杀灭船舶压载水微小生物中试实验研究

Risk assessment of ballast water with the application of standard additive model;

运用标准可加性模型对船舶压载水进行风险评价