NFPA 318 requires 200 fpm across the cylinder neck and panels for pyrophoric gases; and a recently approved Uniform Fire Code Standard,80.106, requires a mechanicalventilation rate of 200 fpm across all unwelded fittings.

對(duì)于自燃?xì)怏w欧爱性爱一区，NFPA 318要求通過鋼瓶頸部和控制板的速度為200 fpm一级黄色视频女人射精；近來通過的統(tǒng)一消防法標(biāo)準(zhǔn)80.106要求通過所有無焊接裝置的機(jī)械通風(fēng)速度為200 fpm）欧洲黄片免费看。

NFPA 318 requires 200 fpm across the cylinder neck and panels for pyrophoric gases; and a recently approved Uniform Fire Code Standard,80.106, requires a mechanical ventilation rate of 200 fpm across all unwelded fittings.

對(duì)于自燃?xì)怏w欧美69xxxxx，NFPA 318要求通過鋼瓶頸部和控制板的速度為200 fpm深夜求在线观看网站；近來通過的統(tǒng)一消防法標(biāo)準(zhǔn)80.106要求通過所有無焊接裝置的機(jī)械通風(fēng)速度為200 fpm六月婷婷五月激情。

To determine where that position is, load and clamp unwelded parts into the machine.

在合適的位置，裝入并夾緊待焊部件美女裸体18禁止免费网站。

The velocity of ventilation across all unwelded fittings should be adequate to prevent the accumulation of silane in the case of a leak.

通過所有無焊接裝置的通風(fēng)速度必須足以防止在泄露情況下的硅烷積累91叫床高潮娇喘嗯啊在线观看。

For fatigue prediction of welded structure is faced not only the general problem of unwelded structure, but also the special difficulty resulted from weld arts. So, study of fatigue acts for wagon body is very important.

由于焊接結(jié)構(gòu)的疲勞壽命預(yù)測(cè)不僅要面對(duì)非焊接結(jié)構(gòu)必須面對(duì)的一般性困難，而且還要面對(duì)焊接工藝本身所導(dǎo)致的特有的困難，因此国产乱子伦一区二区三区，研究我國(guó)鐵路車輛焊接結(jié)構(gòu)的疲勞行為有重要意義欧州A片。

Unwelded：未焊接的

Unsolder 脫焊 把...脫焊,熔化焊接處以拆開;使分離 | Unwelded 未焊接的 | Through hole 貫穿孔

Unwelded：未焊好的

unweldable 不可焊接 | unwelded 未焊好的 | unwheeling 架車

exposed left unwelded：留下不予焊接的顯露部分

Plate edges cutting 板邊,切割 | exposed left unwelded 留下不予焊接的顯露部分 | inspection of 檢查