The high-power heavy truck has replaced the primary low–power truck.
曾经的小马拉大车如今已被大功率高效率的重型卡车所替代；
In the range of low frequency, Conducted interference is primary pass.
在低频范围内，传导干扰是电磁干扰的主要形式。
Low birth weight infant is a primary commonality health problem in the world.
低出生体质量儿是世界上一个主要的公共健康问题。
Low grade primary school teachers got less professional requirements than the other two groups.
小学低年级教师的专业要求低，其它两类的专业要求相对要高。
The circulating cooling water of low quality is the primary reason for incrustation.
循环冷却水水质差是冷凝器表面结垢的主要原因。
Conclusion Eucommia granule has obvious effect in treating low back pain from primary osteoporosis.
结论杜仲颗粒剂对防治原发性骨质疏松性腰背疼痛有明显作用。
Conclusion Eucommia granule has obvious effect in treating low back pain from primary osteoporosis.
结论杜仲颗粒剂对防治原发性骨质疏松性腰背疼痛有明显作用。
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