构件挠度容许值的英文：
allowable value of deflection of structural member

allowable是什么意思：
adj. 允许的，正当的，可承认的

This agenda does not allow compromise.
这一议程容不得商量。

Allow me to introduce myself.
允许我把我自己向你介绍。

The ship was dry and no liquor was allowed.
船上是禁酒的，不准卖含酒精的饮料。

value是什么意思：
n. 价值；价格；重要性；益处；等值；等价物；价值观念；社会准则；标准
v. 给...估价；给...定价；评价；尊重；重视；珍视

A value for the attribute was not in the acceptable range of values.
属性值不在接受范围内。

The value provided was an invalid value for an identifier authority.
所提供的值是无效的标识符颁发机构的值。

These coins are not equal value.
这些硬币的币值不等。

deflection是什么意思：
n. 偏斜；偏斜度

The missile deflected from its trajectory.
导弹已偏离轨道。

The light does not go straight, but is deflected.
光并不是沿直线通过的，而是被弯曲了的。

The gage deflection is due to the momentum transfer.
压力计的偏转是由于动量交换的原因。