These two brothers had been （         ）for 40 years before they met again last week.

长句翻译：
1.飞机的结构可分为一级或二级 2.一级结构是对承载飞行、地面和增压载荷有重要贡献的结构
常用缩写：
1.操作检查
2.在职训练

长句翻译：
1. Independent maintenance unit, is refers to the independent of the operating and aircraft or aircraft parts manufacturer, and provides the aircraft or aircraft parts maintenance service maintenance unit.

MS/ EO/ SB/ CMM/SRM/

Perform a functional test as per CMM / testing section of the oven and check that the blower fan does not carve onto the baffle plate.

ESPM/ ASM/SRM/ WDM/TSM/

To go to the next screen, the activated fields should be completed before pressing the"Start" button.

副翼、燃油泵、窗、气象雷达、天线

TROUBLE：During “Lamp Test” not all lights illuminate.PROBABLE CAUSE:Defective transformer,Open circuit breaker.

Possible cause：Defective Heating element.Action to be taken：Replace the heating element. Do the test again.

The effectivity column shows parts connections to units or assemblies which are almost the same but have small differences. These units or assemblies have reference letters such as A, B, C, etc.