2708. 涂上底漆

A. 清除导致管子破裂的异物

B. 拆除堵塞的管路

C. 清除导致管子堵塞的污物

A. It is necessary to generally check these areas.

B. It is imperative to regularly inspect these areas.

C. Frequent inspection of these areas is necessary.

A. Place an open end of a tube on each plug.

B. Put a plug on the open end of each pipe.

C. Place a plug on each pipe with an open end.

A. 用扭矩扳手拧紧螺母(再拧18)

B. 用力矩扳手拧紧螺母(少紧18)

C. 用扭矩扳手拧紧螺母(最少18)

A. Damage can occur if the hoses are wrongly installed.

B. If the hoses are incorrectly installed, damage may happen.

C. Damage can not occur if the hoses are incorrectly installed.

A. The temperature of the oil has an effect on the precision of the oil level indicator;

B. The temperature of the oil has a negative effect on the oil level indicator;

C. The temperature of the oil has a positive effect on the indicator of oil level;

A. 在大多数操作中,有对工作很重要的关键项。

B. 在大多数操作中,关键项让工作变得很完美。

C. 重要的关键项目是大多数的操作。

A. 确保密封胶不会堵塞出口。

B. 确保密封胶不会堵塞排放。

C. 确保垫圈不会堵塞排放。

A. When cleaning corrosion with a cleaning fluid, avoid damaging adjacent areas.

B. Avoid damaging the area around when we clean the corrosion with cleaner.

C. Use solution to clean the corroded area and prevent to damage the surroundings.

A. 力矩乘以常数用于减少位数,从而简化平衡计算。

B. 力矩除以常数用于减少位数,从而优化平衡化简。

C. 力矩除以常数用于减少位数,从而简化平衡计算。