...量 程： 0~100% LEL，好像叫红星仪器公司的，抗电磁干扰和射频干扰，分辨率 0： 0~999 ppm，分辨率, STEL;T4 美国煤安认证(MSHA)： 0~500 ppm,D,B.1% VOL 一氧化碳.
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据美国矿山安全和健康管理局(MSHA)的调查证明,长壁工作面的滚筒式采煤机司机受呼吸粉尘的危害程度通常比工作面其它设备的操作人员严重。
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在外期间，代表团拜访了美国劳工部及矿山安全健康局（MSHA），听取了MSHA专家关于美国煤矿井下紧急避险设施法规和标准的介绍；访问了美国矿山安全健康局审批与认证中心（A&CC），了解了美国...
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PA-MSHA 制剂 ; 菌毛株菌苗
mshA gene mshA基因
PA-MSHA菌苗 PA-MSHA strain vaccine
msha vaccine msha菌苗
Objective To observe the effect of intra-pleural injection of PA-MSHA vaccine on hepatic pleural exudates.
目的 观察铜绿假单胞菌制剂胸腔注入治疗肝性胸水的疗效。
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Massey has been using public forums to express its differences with the MSHA, its chief regulator.
FORBES: Massey Margins Pinched By Mine Safety, Stock Slippage Ahead
According to MSHA, 18 managers at Performance Coal and Massey Energy refused to testify in the investigation.
FORBES: Massey Energy Employee Guilty of Obstruction, But Where Was Management?
Hecla has received approval from MSHA to remove the loose material from the shaft, said Phillips S. Baker Jr.
FORBES: Hecla Officials Anticipate Clean-Up Of Mine Shaft Can Begin In Few Weeks
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