Effective Propulsion in the ti Method means to direct 'available' forces, rather than generating muscular forces.
在TI中，有效地推进力是指引导可利用的力量，而不是靠肌肉来产生力量。
Once they began kicking and stroking, far more of their energy seemed to go into making bubbles than into effective propulsion.
如果他们不注意这点，只是拼命踢水和划水，虽然付出了更多的能量，但是制造了大量的气泡，没有转化为有效的推进。
Introduced the technological scheme, hardware structure and software structure of the test system, provided effective research route and foundation for propulsion system testing.
研究为空中验证电推进系统的技术指标提供了有效的途径和基础。
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