Maria Sharapova took her first steps onto Rod Laver Arena in two years on Monday to begin her preparations for what she hopes will be a return to form at the Australian Open.
玛利亚·莎拉波娃周一两年来首次踏上了罗德拉沃球场来备战澳网，她希望澳网将是她强势回归的起点。
The advanced hydraulic system has self-return and drill rod stuck proof implements, which ensure great maneuverability and reliability.
先进的液压系统有自我的回报和钻杆坚持证明实施，确保伟大的机动性和可靠性。
After the piston rod retracts for a definite distance, the oil return amount of an oil cylinder can automatically reduce to realize speed reduction effect to the oil cylinder.
当活塞杆回缩至一定距离后，油缸的回油量便自动减少，从而实现对油缸的减速作用。
After the piston rod retracts for a definite distance, the oil return amount of an oil cylinder can automatically reduce to realize speed reduction effect to the oil cylinder.
当活塞杆回缩至一定距离后，油缸的回油量便自动减少，从而实现对油缸的减速作用。
应用推荐