Combine broth, ginger, and reserved mushroom liquid in large saucepan; bring to boil. Cover and reduce heat to low.
Boil noodles in salted water until tender but still firm to bite, about 3 minutes.
Drain; divide among 6 bowls.
Heat 14-inch-diameter flat-bottomed wok or heavy 12-inch-diameter skillet over high heat until drop of water evaporates on contact.
Add 2 tablespoons oil, then pork, spreading evenly. Cook without stirring 20 seconds; then stir-fry pork until no longer pink, about 2 minutes. Stir in rice wine and soy sauce.
Transfer to plate.
Add remaining 1 tablespoon oil to same wok (do not clean) over high heat.
Add mushrooms; stir-fry 1 minute.
Add snow cabbage, bamboo shoot strips, and sugar; stir-fry 30 seconds. Stir in pork and any accumulated juices. Stir-fry 1 minute. Top noodles with pork mixture. Divide hot broth among bowls.