your english will improve a lot ? 你的英语水平提高了不少 endurance machine ? 耐力机 it reinforces or calrifies the message for all visitors ? 它强化或calrifies所有参观者的消息 ..
Static trials are necessary as methods of projection and estimation of airplanes for their endurance used in the machine construction are ideal and different from reality.
The machine test of the dynamic endurance and static indexes for chair, the computer record the testing result, testing graph and report are formed automatically.