摘要:
A three-speed gear shifting box for power-driven tools includes a triple gear fitted on an output shaft of an electric motor, and planetary gears are sleeved respectively on three planetary gear shafts of an intermediate gear disk and are meshed respectively with the triple gear and internal gears. A poking spring makes an internal gear regulating ring move and fix one of the internal gears. Gears on the intermediate gear disk mesh with planetary gears on four planetary gear shafts, on the main shaft, and the planetary gears also mesh with the fixed internal gear.
摘要:
The invention discloses use of benzisoselenazolones, particularly compounds represented by the general formula (I) against ischemic myocardial injury. The compounds are characterized by selectively inhibiting Na+/Ca2+ exchange, dilating coronary artery and decreasing myocardial oxygen consumption, which possess the advantages of high activity, potent specificity and low toxicity.
摘要翻译:本发明公开了苯并异恶唑啉酮,特别是通式(I)表示的化合物对缺血性心肌损伤的应用。 该化合物的特征在于选择性抑制Na + / ATP 2 +交换,扩张冠状动脉和降低心肌耗氧量,其具有高活性,有效特异性和低 毒性。