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...
...a deadly disease currently affecting dolphins...目前正在威胁海豚生命的致命疾病Dolphins have sometimes been known to save drowning swimmers.据悉海豚有时会救溺水的游泳者。Dolphins sometimes play in the wake of the boats.有时海豚在船的尾流中嬉戏。Whales and dolph...
We left the road, and again bumped over the mountainside.我们驶离公路，再次在山腰上颠簸前行。The couple trudged up the dark mountainside.这对夫妇在黑黝黝的山坡上艰难跋涉。Tracks led up the mountainside.小径沿着山坡向上延伸。...
He was much annoyed at my remark and called me a diehard.他听了非常不高兴,竟骂我思想顽固.Though there are always predictable throngs of diehard Beatles fans and classic?尽管有大批可预见的披头士发烧友和古典摇滚乐迷抢购这些最新包装的音乐作品,但这一回主要的购买者却是12岁甚至更小的孩子.John is...
Kenny, struggling with too many chairs, moved crabwise towards the door.肯尼在许多椅子中间艰难穿行，像螃蟹一样横着向门口挪去。" Well , It'seems strange to see you way up here,'said Mr. Kenny genially.“ 咳, 真没想到会在这么远的地方见到你, "肯尼先生亲切地说.Kenny...
I am luckier than most. I have a job.我比大部分人幸运。我有份工作。'You are a luckier, if you mean that.'“ 你比我要幸运些, 假如你是那意思的话. ”Some people are luckier in some things than others.有些人在有些事情上运气就是比别人好....
These cells had retained a diploid Karyotype.这些细胞持有二倍体核型.Comparatively , PCR - Acc molecular marker produced two genotypes , G - type and T - type for both autotetraploid and diploid rice.而用PCR-Acc检测, Wx基因表现为G - 型和T - 型....
Birmingham, the "UK City of Music", will be parading its finest artistic goodies.英国的音乐之都伯明翰将展示其精美的艺术珍品。...the bright uniforms of the guards parading at Buckingham Palace.参加白金汉宫阅兵式的卫兵们色彩鲜艳的制服Valentino is keen to see celeb...