__________ is the act performed by or resulting from saying something; it is the consequence of, or the change brought about by the utterance.

溢流阀通常并接在液压泵的出口，用来保证液压系统的出口压力恒定时称为 ___ ；用来限制系统压力的最大值称为 ___ ；还可以在执行元件不工作时使液压泵 ___ 。

在工业生产过程中,计算机能够对控制对象进行自动控制和自动调节的控制方式,如生产过程化、过程仿真、过程控制等。这属于计算机应用中的______。

All people, whether they be rich or poor, strong or weak, privileged or deprived，are interdependent, and _______ the common task of seeking to achieve mankinds full potential

Many boys enjoy _______ football, basketball or baseball

－ What does the sign over there read － “No person ________ smoke or carry a lighted cigarette, cigar or pipe in this area”

受弯构件正截面的破坏形式有__、__和__。

铰链四杆机构的传动角等于0°时,其压力角等于=_____,此时机构所处的位置称为_____位置。(

Duty is an act or a course of action that people __________you to take by social customs, law or religion.

Duty is an act or a course of action that people ______you to take by social customs, law or religion.

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

在变形过程中,某截面所转过角度,称为该截面的___。