It may limit the amount of sparkover to an acceptable rate . 它可把火花放电频率控制在允许范围内。
Through their advice and training efforts , canadian dairy production technology and canadian dairy genetics are receiving widespread acceptance throughout the country . milk yield is improving at a very acceptable rate and milk consumption is increasing to the point where demand exceeds supply 通过他们的建议及开展的一些培训活动,加拿大的先进的奶业生产技术和优质的遗传材料已被各地普遍接受,产奶量正以较快的速度增长,牛奶的消费量也在继续增长,目前供不应求。