全行程范围转动阻挡门和阻挡门连杆感觉过度应力或磨损。
Rotate the blocker door and the blocker door links for signs of excessive stiffness or wear through full range of motion.
管（道支）架要有一定的强度及刚性，与其荷载和服务相适应，并且其安装不应对建筑结构产生过度应力。
Supports shall be of strength and rigidity to suit loading, service and installed in manner which will not stress unduly the building construction.
“这会对本已酸痛的跟腱造成更大的应力负担，”他说，同时补充道，应注意避免过度拉伸练习，尤其是不要做面向阶梯的拉伸练习。
"It puts too much stress on the already sore tendon," he says, adding that you should use caution and avoid overstretching, in particular on stair stretches.
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