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1·Problems occur only if a contradiction develops between a new observation, say, That ball is blue, and the preexisting statements.

只有当一个新的观察，比如“那个球是蓝色的”，与已有的陈述之间产生矛盾时，才会出现问题。

2·The event itself may be seen as either ex nihilo or order from preexisting chaos.

事件本身可以被看作要么不可得的虚无要么来自现有混沌的法则。

3·But what about preexisting code?

但是，对于现有的代码，应该怎么办呢？

4·Assume client1 changes the password for a preexisting user 'u100'.

假设客户端1更改了预先存在的用户“u100”的密码。

5·They allow you to mix in a wide variety of preexisting functionality.

它们可以让您坐享各式各样的现成功能。

6·Protocols allow you to define polymorphic functions over preexisting types.

协议允许您在先前存在的类型上定义多态函数。

7·One exception concerns the preexisting AdminConfig attributes command.

有一个异常是关于先前存在的 AdminConfig attributes 命令的。

8·Any change in the shape, color, or size of a preexisting nevus should raise concern.

先前就存在的痣出现形状、颜色或大小的任何改变就应当引起重视。

9·Provide a business-level abstraction for the composition of preexisting business services.

提供预先存在的业务服务的业务级别抽象。

10·Thus, permission should extend only to sales made at regular or preexisting price levels.

因此，只允许在正常的价格水平或既存的价格水平上做出的销售。

先存

1·Metamorphic rocks form from the alteration of preexisting rocks by changes in ambient temperature, pressure, volatile content, or all of these.

变质岩是由先存岩石在周围温度、压力、挥发物含量、或所有上述因素都变化而发生蚀变而形成的。

2·Fractures themselves typically do not have much volume, but by joining preexisting pores, they enhance permeability significantly.

裂隙本身的特点是没有很大容积，但通过连接先存的孔隙，明显地提高渗透率。

3·The left-lateral strike-slip movement of the Zhongwei fault zone since late Pleistocene caused the differentiation of preexisting overthrust faults in the zone.

青藏高原东北缘的中卫断裂带在晚更新世以来的左旋走滑运动中，先存的挤压逆掩、逆冲断裂带发生了分化。

4·Coupling the acoustic emission probe with the specimen is the key link in the measurement of preexisting stress of the rock specimen by Kaiser effect.

以凯瑟效应测量岩石试样先存应力，声发射探头与试样的耦合是其重要环节。