A、 contamination of the grease can cause damage to the bearing.
B、 contamination of the oil can cause damage to shaft.
C、 pollution of the grease can cause damage to the axle.
答案：A
A、 contamination of the grease can cause damage to the bearing.
B、 contamination of the oil can cause damage to shaft.
C、 pollution of the grease can cause damage to the axle.
答案：A
A. 英语是科学、工艺和人际关系的交流语言。
B. 英语是科学、技术和相关人员的互通语言。
C. 英语是科学、技术和人际关系的国际语言。
A. 如果你看到染色,拆卸部件。
B. 如果你看到变色,更换部件。
C. 如果你看到有颜色,移除部件
A. Do not exceed this speed with undercarriage retracted.
B. Do not exceed this speed with landing gear retracted.
C. Do not exceed this speed with undercarriage extended.
A. 检查后再次拉长连杆。
B. 测试后再次移动连杆。
C. 检查后再次调节连杆。
A. This is the maximum portion of flammable vapors in air if the portion is bigger, when an ignition source touched the gas, it would cause the fire to be diffused.
B. This is the minimum volume of flammable vapors. If the volume is lower, when the gas contacted with an ignition source. the fire would not come out.
C. This is the minimum density of flammable vapors in air. if the density was lower, when an ignition source touched the gas, it would not cause the spread of flame.
A. 原理图应包括被认为是输出源头的发电机、油箱和储液箱。
B. 原理图由被认为是输出源头的发电机、油箱和蓄压器组成。
C. 原理图应排除被认为是输出源头点的发动机、油罐和油箱。
A. 拆除并丢弃开口销和螺帽
B. 拆除并丢弃开口销和螺栓
C. 拆除并报废开口销和螺丝
A. If it is less than two hours since you mixed the compound, do not use it.
B. If it is more than two hours since you mixed the compound, do not use it directly.
C. If it is more than two hours since you mixed the compound, do not use it.
A. An in-line flow indicator is embodied in other configurations. If there is oxygen, the color of the indicator becomes green.
B. The oxygen is dyed green in other configurations that include an in-line flow indicator.
C. The present oxygen indicator comes on green due to an in-line flow in the other configurations.
A. 涡轮发动机速度表通常以涡轮最大转速的百分比来测量转速。
B. 涡轮发动机转速表通常以涡轮额定最大转速的百分比来测量转速。
C. 涡轮发动机速度计通常以涡轮转动的最大速度的百分比来衡量。
