blank wall

n.

无法克服的障碍，毫无进展的状态；

双语例句

Attempts to get further information by questioning the captives ran into a blank wall.
审讯俘虏以获得更多情报的试图未能取得任何进展。

权威例句

Production of sintered Nd-Fe-B magnets with maximum energy density of 53 MG Oe

Effect of peripheral nerve section and nerve crush on spinal cord neuropeptides in the rat; increased VIP and PHI in the dorsal horn.

Dependence of the coercivity H cJ of high energy Nd-Fe-B magnets on the alignment coefficient

The influence of Co on the corrosion resistance of sintered NdFeB magnets

Powders for rare earth magnets, rare earth magnets and methods for manufacturing the same

Unilateral sciatic nerve section induces a significant increase of vasoactive intestinal polypeptide (VIP) in nerves of the ipsilate...

Powders for rare earth magnets, rare earth magnets and methods for manufacturing the same

Dependence of the coercivity H/sub c/J of high energy product Nd-Fe-B magnets on the alignment

Poudres pour aimants a base d'elements de terres rares, aimants a base d’elements de terres rares et leurs procedes de fabrication

Hollow tubular blank provided in wall thereof with one or more reinforcing ribs