The roll is increased and severer than shipping state when the frequency of wave is similar as the natural rolling frequency of ships.

船舶在系泊或低航速状态下，当涌浪周期接近船舶自然横摇周期时，船舶摇摆比航行时更为剧烈。

youdao

That should keep the world's largest "natural" supermarket, and its investors, rolling in green.

FORBES: The Overachievers

Rolling back coal-related rules and regulations while asking natural gas-and-nuclear-fired power plants to meet stricter standards is not realistic.

FORBES: A Wounded Coal Industry Seeks To Unseat A Rockefeller Who Turned On Them

The primary emissions reductions over the next four years will come from installing more natural gas to replace coal, implementing the higher CAFE standards, rolling out more fully electric cars and beginning to install smart grid components.

FORBES: Energy And The Election