angle of vanishing stability u etting angle upsetting angle
Related Translations:
倾覆: overturn; topple; tumble; capsize 短语和例子小心不要使船倾覆。 be careful not to capsize the boat. 我们看到独木舟倾覆了, 把上面的乘客掀入水中。 we saw the canoe overturn, throwing its passengers into the water