She had bleary red eyes from lack of sleep.她由于缺乏睡眠而双眼昏花，布满血丝。I was hampered by a lack of information.我受到了信息不足的牵累。So many marriages have come to grief over lack of money...许多婚姻都因缺钱而以失败告终。The lack of animal, bacterial, or ...
在选用压力机时,必须严格按照许用负荷曲线图来选择.It is shown that permitted load curve must be implemented in choosing crank press.提出的设计数据如安全系数、许用应力均根据生产实践的应用所确定.Some datum, for example safety factor and allowable stress are put forward based o...
SB 9917 anti - weather acrylic acid polyurethane coating is two components anticorrosive coating.SB9917丙烯酸聚氨酯耐候漆是双组份、性能优良的防腐涂料.Epoxy - polyurethane IPN anticorrosive paint forms film with excellent anticorrosive property...