HPMC的保水性能使浆料在涂抹后不会因干得太快而龟裂，增强硬化后强度。
HPMC water retention of the smear after the slurry will not dry too fast and cracked, enhanced strength after hardening.
HPMC的保水性能使浆料在涂抹后不会因干得太快而龟裂，增强硬化后强度。
HPMC water retention of the smear after the slurry will not dry too fast and cracked, enhanced strength after hardening.
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