接着，调整实验条件，小鼠们必须按操作杆两次才能得到一剂药物。
Then the cycle was adjusted and rats were required to press the lever twice to get a single dose.
对阀盘、耳轴活塞杆头的染料渗透剂测试。
Dye-penetrant testing of the disc trunnions and piston rod heads.
喷头、玻璃刮、升缩杆、水桶、玻璃清洁剂、清水、抹布。
Spread head, glass scrubber, telescoping rod, water bucket, glass detergent, clean water, wiping cloth.
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