汽轮机容量限制器在投入位置时应不妨碍调节汽门全关。()
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减压器卸压的顺序是先(),然后放出减压器内的全部余气。
A. 放松压力调节
B. 关闭气瓶瓶阀
The back-chaining technique means the students repeat a sentence after the teacher, starting from the end part of the sentence and moving towards the beginning.()
A. 正确
B. 错误
凡应进行钻井取心而错过其取心机会的井段,都应进行()。