Adding ground fluorite powder makes the molten metals more fluid and protects the titanium from air as it cools.
加入萤石粉(即氟化钙)可以使熔融态的金属更具有流动性，并在钛冷却过程中将钛与空气隔绝。
2
That hurdle was overcome by adding a small amount of brain fluid to the petri dish used to grow them.
这个障碍已经被克服，通过加入少量的脑液到培养皿用于种植。
3
To restrain the wind-induced vibration of its feed cabin and the pseudo-drag of its cable, we propose a new structural scheme for adding a fluid vessel to the moving platform of the robot.