field diaphragm 视场光阑 ; 视场阑 ; 景深
Luminous Field diaphragm 光源的视场光阑
luminuos field diaphragm 光源的视场光阑
field iris diaphragm 将视场光阑
field iris diaphragm ring 释义视野可变光阑环
field diaphragm opening 透镜光阑孔
measuring field diaphragm 测量场光缆
illuminated field diaphragm 照明视场光阑
field book diaphragm 视场光阑
Diaphragm valves cannot be repaired or adjusted in the field.
不能在现场修理或调整隔膜阀。
The All Stainless Steel Pressure Gauge has an internal compensating diaphragm and a filling plug for field filling.
全不锈钢安全 压力表顶部设有充液塞及一个内部补偿膜片，可在现场充液。
Roentgenographic findings include the shadow appears in pulmonary field(18/20), pleural effusion (6/20), decrease of lung markings(3/20)and elevation of the diaphragm, etc.
胸片表现为肺内出现阴影（18/20）、胸腔积液（6/20）、肺纹理纤细减少（3/20）及横膈升高等。
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