The welding conditions should always be neutral or slightly oxidizing.焊接气氛必须永远保持中性或微氧化.Alkanes are resistant to attack by oxidizing agents generally.烷烃一般对于氧化剂的作用是稳定的.In liquid mixtures tetranitromethane may be used as an...
Dryness to avoid creating bronzing layer oxidizing or injury.燥,以免造成烫金层氧化或损伤.Alkanes are resistant to attack by oxidizing agents generally.烷烃一般对于氧化剂的作用是稳定的.Immersion service in aromatic or ketone solvents and strong oxidi...
In the wedge - shaped plateau are great old cities supported by rich farmlands.在梯形 状 的高地上,有肥沃农田赡养的著名古城.Foliaceous egg form or chief round written complaint needle form, tip needle, base ministry wide wedge.叶卵形或长圆状披针形,先端尖...
The electroformed Ni - Mn alloys hold good prospects for its specific performance.电铸镍锰合金因其特殊的性能而具有重要的应用前景.Electroformed apertures reproduce the mandrel photo resist finish faithfully and do not require any further proces...
Mars has an insubstantial atmosphere, consisting almost entirely of carbon dioxide...火星的大气层极其稀薄,几乎全部由二氧化碳构成。Gasfired heaters should not be used in corrosive or explosive atmosphere.燃烧煤气的加热器不宜用于有腐蚀性或危险性的气体中.As the lungs e...
Memories have been in unbridled spread.回忆一直在肆无忌惮的蔓延。I was amazed at their unbridled glee.他们那兴高采烈的痛快劲儿真让我吃惊.The invading troops displayed the most unbridled license.入侵军队胡作非为到了极点....