A sewage self-reclaim system of fracturing car is designed to assure that sewage of the sewage reclaim system not fall to the ground, and reach the well field environmental protection requirements.
为保证污水回收系统作业污水不落地，达到井场环保要求，设计了压裂车污水回收系统。
If it is displayed on such occasions, do not allow the flag to fall to the ground, but let it be carried high up in the air to form a feature of the ceremony.
如果在这种场合展示国旗，不要让国旗掉到地上，而是让它高高地悬在空中以构成仪式的特色。
Galileo was not merely ambitious when he dropped objects of varying weights from the Leaning Tower at Pisa and timed their fall to the ground.
伽利略从比萨斜塔上扔下不同重量的物体，并计算它们的下落时间。他要实现的不仅是他的勃勃雄心。
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