把探查导管套在导丝上向前推送，然后把探查导管和导丝作为一个整体推进空肠。
Advance the seeking catheter over the wire guide, then use the seeking catheter and wire guide as a unit to advance into the jejunum.
导管螺旋桨优势在于低航速时提供更大的推力和更高的推进效率，因此作为首要选择。
The advantage of the ducted propeller is, this type propeller can support greater thrust and higher efficiency under low speed, so is the first choice.
在破冰船推进性能方面，主要采用导管螺旋桨作为主要推进器。
In the propulsion performance of the icebreaker, mainly use the ducted propeller as the main propulsion.
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