Designs o? The closed soft surface gear transmissions are generally restricted by the contact fatigue strength.

闭式软齿面齿轮传动设计中，常受齿面接触疲劳强度的限制。

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Maguire had been in fine form en route to the final but only potted two balls in the first two frames as O'Sullivan moved into gear with breaks of 54 and 66 in the opener.

BBC: CHOOSE A SPORT

Ms O'Neill said it was hoped to come up with a suitable kind of fishing gear that would allow the local fleet to be exempt from the terms of the cod plan.

BBC: December Fisheries Council Meeting