Objective To study the effects of low dose radiation (LDR) on the bone marrow of mice with myelomonocytic leukemia and provide theoretical base of the clinical application of LDR.

目的探讨低剂量辐射(LDR)对急性粒单核细胞性(粒单)白血病小鼠骨髓的影响，为ldr的临床应用提供理论依据。

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Impact factors of deep drawing LDR are analyzed. parameter BHF which can not be looked down upon is pointed out. Method of rebuilding single press machine for improving LDR is proposed.

分析了影响板料拉深成形极限拉伸系数的因素，指出压边力参数对LDR具有不可忽视的影响，并给出了改造单动液压拉深压边力控制系统提高LDR的方法。

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Sqn Ldr Than was also a member of the Army Mountaineering Association (AMA) and a qualified doctor.

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Two off-duty RAF personnel Fran Capps, 32, from Dulverton in Somerset, and Sqn Ldr Rimon Than, 33, died.

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Sqn Ldr Duncan Mason said the new machine was "a dream" to fly.

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