锥形vr拉斗铲铲斗也是全组合型铲斗，铲斗的关键部位根据同一原理按设计的特定维修周期更换。
The taper VR dragline bucket is a fully fabricated bucket, designed around the same principle of specific service intervals in which critical areas are replaced during the life of the bucket.
外部为锥形连接件的强电电缆插套组合配件。
Separable accessories for power cable for bushing with outside cone;
自从对于锥形分子，其分子内的重新组合的量子隧穿效应1927年被证实以来，人们在研究隧穿效应上做了大量的工作。
Since the quantum tunneling for intramolecular rearrangements in pyramidal molecules was testified in 1927 a lot of work has been done to study the tunneling.
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