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- It indicates that the key to increase service life of component lies in shortening final crack length ofmicro-short-crack expansion and increasing physics-short-crack threshold demension. 建立了疲劳寿命估算模式,阐述了疲劳寿命的影响因素,指出提高构件使用寿命的关键在于缩短微观短裂纹扩展的终止裂纹长度,增大物理短裂纹扩展的门槛裂纹尺寸。
- Some rowing boats lay keeled over on the beach. 一些划艇船底朝天地放在沙滩上。
- Their clothes lay in a huddle on the floor. 他们的衣服杂乱地堆在地板上。
- A strong crosswind caused our gunboat to lay along. 一阵猛烈的侧风把我们的战舰吹得倾斜起来。
- The ship lay keeled over at low tide. 那艘船因退潮而倾覆。
- He lay face downwards on his bed. 他俯卧在床上。
- The broken vase lay in shatters. 那只打碎了的花瓶的碎片撒了一地。
- I had to lay out a fortune on that car. 我得为那辆汽车花上一大笔钱。
- He lay on his back and looked up at the sky. 他仰卧著观看天空。
- Surprise is an essential component of my plan. 我这项计划主要就是想使大家惊喜一下。
- Remove the motor when you lay up your boat. 船闲置不用时，你要把发动机拆下来。
- He had to lay up his legs till they got well. 他得在睡椅上伸展两腿，一直到放好位置为止。
- I lay in the sun all day and was burned to a crisp. 我在太阳底下躺了一天，都快烤焦了。
- I lay no claim to being an expert economist. 我决不自命为经济学专家。
- He lay back and hit the ball for four. 他向后弯身击中球，得了4分。
- He lay back in his chair and dozed off. 他靠在椅子上打起瞌睡来。
- Brimstone is a component part of explosive. 硫磺是炸药的一种组成成分。
- He lay on the floor with a cushion under his head. 他躺在地板上，头下枕着一个垫子。
- I wish you wouldn't just lay about all day. 我希望你不要才是终日游手好闲，无所事事。
- He seized a club and began to lay on for dear life. 他抓起一根棍子，拼命地乱打起来。
