I think that the injection does not necessarily need.
我觉得不一定需要注射液。
No Need knock floor tiles, not injection.
免敲地砖，不用注射法。
After injection does not need to massage, need not special care, a bit does not affect the normal work and life.
注射后不需按摩，无须特殊护理，丝毫不会影响正常工作、生活。
This article analyses the situation of motor-drived water injection systems, the electric power supply can not meet the need of oilfield water injection.
文章分析了油田电动注水系统的技术状况，油田供电能力不能满足注水动力用电的需要；
If the equipment is cooperated with automatic laying equipment, fully automatic control large scale injection producing equipment which does not need watching can be realized.
若配以自自动码放设备，可实现无人值守的全自控的大型注塑生产设备。
If the equipment is cooperated with automatic laying equipment, fully automatic control large scale injection producing equipment which does not need watching can be realized.
若配以自自动码放设备，可实现无人值守的全自控的大型注塑生产设备。
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