Step Four: Interlock your fingers, (thumbs should be on opposite sides), and twist again, this time, backs of fingers against palms.
第四步：双手手指相扣(拇指应该在相对的两侧)，手指指背对着另一手的手心，互搓。
2
The Texaco gasifier plant is set as an example, a test method of the stroke-time of the interlock valves for the safety system is introduced.
结合德士古气化装置实例，介绍一种对安全系统中的程控联锁阀门动作时间进行测试的方法。
3
But if the temperature and precipitation increase at same time, the transfer of interlock area of farming-pastoral region will decrease, or keep unchanging.