“movable-point crossing”的概念、定义、翻译、参考文献-科学参考

单词	movable-point crossing
释义	movable-point crossing [`mü·vǝ·bǝl ¦pȯint `krȯs·iŋ] ^{CIVIL ENGINEERING} A small-angle rail crossing with two center frogs, each of which consists essentially of a knuckle rail and two opposed movable center points.
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