当呼叫遇忙或无应答时，LEC(本地电话公司)使用该规则重新发送呼叫。
Rules that a LEC (Local Exchange Carrier) employs to redirect a call that encounters a Busy or No Answer.
近年来已生产出缓解疾病的抗风湿性生物制剂(DMARDs)，这能有助于改善不规则的免疫应答、改善这种疾病的症状。
In recent years, biologic disease-modifying anti-rheumatic drugs (DMARDs) have been introduced that can help to modify this irregular immune response and improve symptoms of the disease.
近年来已生产出缓解疾病的抗风湿性生物制剂(DMARDs)，这能有助于改善不规则的免疫应答、改善这种疾病的症状。
In recent years, biologic disease-modifying anti-rheumatic drugs (DMARDs) have been introduced that can help to modify this irregular immune response and improve symptoms of the disease.
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