i积分作为裂缝前缘奇异应力场的参数量，是有实际应用价值的。
INTEGRAL J_I, which is referred to as a parameter of singular stress field at the front of crack-tip, has its practical value.
以期对现时期的企业网络防御所存在的问题，提供一些有实际应用价值的帮助。
It is expected to give some actual help to the problems existing in the enterprise net defense.
提出了有实际应用价值的RTL8305SB 2.5 V电源生成方法，在实际应用中大大提高了RTL8305SB的稳定性。
A new method of creating RTL8305SB 2.5v power which can greatly improve the stability of RTL8305SB is given.
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