3350. Text may be prepared in one or two columns with or without justification Warnings, cautions and notes may be used to highlight or emphasize important points

13. DO NOT LET THE HEATER ( ) TOO HOT

12. When an illustration is required to be reproduced horizontally on a page,the top of the illustration shall always be toward the left edge of the sheet

11. 这种材料接触热表面时会释放出危险的气体。

10. 在这种构型中,液压旁通此活门。

9. An alphabetical index by subject is included in the introduction, as an assistance in locating the desired circuit

8. I remember the whole thing as if it happened yesterday

7. Measure the time necessary for the pressure to decrease

6. The backup converter defaults to the right backup generator If the right backup generator is not available or faulty, the converter uses the left backup generator

5. AND gate is a logic device in which the logic condition ( ) of its single output is one only when the conditions of all of its inputs are logic one

4. 绿灯亮时,系统准备工作。