Clean the outer surface with warm water.

A. The condenser decreases the temperature of the air in the air conditioning pack to below the dew point, changing water vapor into liquid.

B. The cooler lowers the air temperature to the boiling point in the air conditioning module, which can transfer the steam into water.

C. The evaporator turns steam into liquid by reducing the temperature of the air in the air conditioning pack to the evaporating point.

A. If the filters become clogged after an unusually short time, send them to the laboratory for analysis of the contamination.

B. When the filters become clogged in an abnormal short time, send them to the library to analyze the contamination.

C. When the filters become blocked unconventionally after a very short time , send them to the lab for calculation of the contamination.

A. 计划性勤务包括内部清理等工作。不包括维修工作实施所要求的润滑程序。

B. 计划性勤务包括内部清理等工作。不包括润滑程序，这是维修工作实施所要求的。

C. 计划性勤务包括内部整理等工作。不包括润滑程序，这是维修工作实施所要求的。

A. You can not remove the battery. Only an approved service provider can replace it.

B. Do not replace the battery. Only an approved service provider can replace it.

C. Do not replace the battery. Only an approval of a service provider can replace it.

A. Obey the safety precautions when you do work with high voltages.

B. When working with high resistances, you should follow the safety precautions.

C. The safety precautions are optional in an environment with high voltages.

A. Each revision and the effective page should be logged in the logbook.

B. Only the effective revisions pages need to be recorded in the manual.

C. Each manual shall have a record of revisions or effective pages.

A. 不要组装或修理点火嘴。

B. 不要拆解或修理点火嘴。

C. 不要组装或更换点火嘴。

A. Give precise instructions for using emergency exits.

B. Give special directions for using urgent exits.

C. Give accurate data for using urgent exits.

A. 检查部件的接合处及邻近区域。

B. 检查部件的表面以及相关区域。

C. 检查部件的内部以及相邻区域。

A. Check wash basin drains, water tap and its lines for leakage.

B. Inspect the washing sink, faucet and its pipe for leakage.

C. Examine the washing hand drain port, tap and the line for crack.