| 1. | The second check valve has a lighter weight spring
第二止回阀则配置较轻的弹簧。 |
| 2. | Add a second check box to the document below the
将第二个复选框添加到文档中 |
| 3. | Service the second check valve using steps 2 through 12
按照第2步至第12步维修第二止回阀。 |
| 4. | To move the insertion point below the second check box
按“ enter ”将插入点移至第二个复选框的下方。 |
| 5. | Note : the seats and springs of the first and second check modules are not interchangeable
注：第一和第二止回阀模块的阀座和弹簧是不能互换的。 |
| 6. | Remove first check module from module adaptor , and repeat above procedure with second check module
从模块适配器上拆卸第一止回阀模块，对于第二止回阀模块重复上列步骤。 |
| 7. | Open va then tc # 4 . if relief valve does not drip , record second check valve as " closed tight "
开启va ，然后开启测试旋塞4号。如果安全阀没有滴水，则记录第二止回阀为“关闭紧密” 。 |
| 8. | Reassemble the check valve module in the reverse order . service is identical for both the first and second check valves
按照相反的顺序安装止回阀。维修第一和第二止回阀的方法相同。 |
| 9. | Otherwise , such relief ( spitting ) can occur when the second check is fouled during emergency backflow or resulting from a water hammer condition
此外，在紧急回流或出现水锤现象时，如果第二止回阀受到污染，则这种安全阀可能出现释放（喷溅） 。 |
| 10. | The second check , for 150 , 000 , was presented to mrs . shoshana grammer and mr . mike driebe , representatives of the saint jude children s research hospital
第二张十五万元美金的支票赠给萧夏娜葛拉梅女士和马克得立比先生，他们是来自于圣裘迪儿童研究医院的代表。 |
