增雨潜力系数与降水的演变趋势很一致，可为选择合适的作业时机提供参考。
The trend of rainfall enhancement potential coefficient was identical with that of rainfall, which can provide reference for choosing appropriate seeding time.
暑假对于孩子们来说是一个从繁重的家庭作业中得到放松并与家人、朋友进行户外活动的时机。
Summer vacation is a time for children to relax from heavy homework, and enjoy outdoor activities with family and friends.
周日用来补上拖欠的阅读任务和其他作业的好时机。
It is a good day to catch up on back reading and other assignments.
作业条件：根据现场温度、湿度条件掌握适当时机进行自流平施工。
Operational conditions: conduct leveling at proper time according to site temperature and humidity condition.
针对机器人在水下作业的特点，分析了有波浪作用时机器人在船体表面的运动，建立了机器人在船体表面静止和运动两种状态下的力学模型。
Considering the underwater work environment, the author analyses the robot movement on the ship hull with wave action, and establishes mechanics model of the robot in stationary and moving state.
针对机器人在水下作业的特点，分析了有波浪作用时机器人在船体表面的运动，建立了机器人在船体表面静止和运动两种状态下的力学模型。
Considering the underwater work environment, the author analyses the robot movement on the ship hull with wave action, and establishes mechanics model of the robot in stationary and moving state.
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