如果表达式

The following are the expressionsfor the mean pressure set up at the detection plate and for the time of the signal toprogagate from the radiator to the detector:这里是1个公式,省略） where Re is the real part of the expression appearing within the braces, 0 is the density ofthe medium, vo is the amplitude of the vibrational velocity, c is the speed of sound in themedium, d2 = I +(r/zcos 8, z is the distance between the emitting and receiving plates, B is the angle between the axis of the acoustic channel andthe axis of the tube, r = vro/c, v is the flow speed of the fluid, d is thediameter of the pipe, m is the circular frequency, k is the wave number,where a is the radius of the plate (this is taken as the same for the emitting and receivingplates for simplicity, but there is no difficulty in discussing plates differ~mg in radii),,~ is the vibrational frequency of the emitting plate, andThe triple sums in the expressions for N~ and N2 may be neglected if the flow speed islow, since the contributions for these become negligible.

以下是表达式平均压力为定于检测板和为信号时间progagate从散热器到探测器：（这里是1个公式，省略）假如再是出现在大括号表达式的实部，0是密度中期，沃是速度的振动幅度，C是健全的速度中，D2中=我+的导向8，z是对之间的距离发射与接收板，B是声之间的通道轴角该管的轴，R =中心内大多分为/荤，v是流体的流动速度，，D是管道直径，m是圆频率，k是波数，的其中一盘是半径（这是为重点，同样的发射与接收为le简单板，但没有讨论板的困难，在半径不同毫克），，是发光板振动频率，和在N的表达式的三重总结和N2可以忽略，如果流速低，因为这些变得微不足道的贡献。

The value of a conditional expression is defined as follows: If the effective boolean value of the test expression is true, the value of the then-expression is returned.

一个条件表达式的值定义如下：如果测试表达式的有效布尔值为true，则返回then表达式的值。

If the effective value of the test expression is true, the conditional expression ignores any dynamic errors encountered in the else-expression.

如果测试表达式的有效值为true，条件表达式忽略任何else表达式中遇到的动态错误。

Specifically, if the first disjoin of an or is true, the value of that disjoin becomes the value of the expression, without evaluating the rest; if the first conjoin of an and is false, its value likewise becomes the value of the whole expression.

具体地说，如果 or 表达式的左边部分为 true，那么就不用对其他部分进行求值了，这部分的值直接成为整个表达式的值了；如果 and 表达式的左边部分为 false，那么同样这部分的值也是直接成为整个表达式的值了。

If the name is followed by an equals sign and an expression, the expression serves as an initializer, as in char esc ='\\'; int i = 0; int limit = MAXLINE+1; float eps = 1.0e-5

在声明中，如果变量名的后面紧跟一个等号及一个表达式，该表达式就充当对变量进行初始化的初始化表达式。例如： char esc ='\\'； int i = 0； int limit = MAXLINE+1； float eps = 1.0e-5

For instance, if the expression is a floating-point literal, the constant identifier denotes a floating-point constant, even if the literal's fractional part is zero.

例如，如果表达式是一个浮点文，常量标识符表示一个浮点常量，即使这个文的浮点部分是0。

In the case of an expression with no operator, the result is the operand itself, e.g., a literal constant or a variable.

如果表达式中没有操作符，则其结果就是操作数本身（例如，字面值常量或变量）的值。

A parenthesized expression list yields whatever that expression list yields: if the list contains at least one comma, it yields a tuple; otherwise, it yields the single expression that makes up the expression list.

括号内表达式列表的结果取决于其内部表达式列表的结果：如果表达式列表中包括至少一个逗号，它就生成一个元组；否则，就生成一个由表达式列表组成的表达式。

By definition, the numeric value of a relational or logical expression is 1 if the relation is true, and 0 if the relation is false.

根据定义，在关系表达式或逻辑表达式中，如果关系为真，则表达式的结果值为数值1；如果为假，则结果值为数值0。

If the expression values are untyped constants, the declared constants remain untyped and the constant identifiers denote the constant values.

如果表达式的值是无类型的常量，声明的常量保持无类型，常量标识符表示常量值。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。