作业帮英语翻译In ordinary parlance,muscular "strength" usually refers
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/08 02:09:29
英语翻译
In ordinary parlance,muscular "strength" usually refers to the ability to exert a force on an external object—for example,lifting a weight.By this definition,the masseter or jaw muscle is the strongest.The 1992 Guinness Book of Records records the achievement of a bite strength of 4,337 N (975 lbf) for 2 seconds.What distinguishes the masseter is not anything special about the muscle itself,but its advantage in working against a much shorter lever arm than other muscles.
If "strength" refers to the force exerted by the muscle itself,e.g.,on the place where it inserts into a bone,then the strongest muscles are those with the largest cross-sectional area.This is because the tension exerted by an individual skeletal muscle fiber does not vary much.Each fiber can exert a force on the order of 0.3 micronewton.By this definition,the strongest muscle of the body is usually said to be the quadriceps femoris or the gluteus maximus
In ordinary parlance,muscular "strength" usually refers to the ability to exert a force on an external object—for example,lifting a weight.By this definition,the masseter or jaw muscle is the strongest.The 1992 Guinness Book of Records records the achievement of a bite strength of 4,337 N (975 lbf) for 2 seconds.What distinguishes the masseter is not anything special about the muscle itself,but its advantage in working against a much shorter lever arm than other muscles.
If "strength" refers to the force exerted by the muscle itself,e.g.,on the place where it inserts into a bone,then the strongest muscles are those with the largest cross-sectional area.This is because the tension exerted by an individual skeletal muscle fiber does not vary much.Each fiber can exert a force on the order of 0.3 micronewton.By this definition,the strongest muscle of the body is usually said to be the quadriceps femoris or the gluteus maximus
通常来说,肌肉“力量”指的是向外部物体发力的能力,例如提起重物.如果这样定义,咬肌或颚肌是最强壮的.1992年的吉尼斯纪录纪录了2秒钟4337 N（975磅）的咬力.咬肌这么出众,并不是因为肌肉本身特别,而是因为比起其它肌肉具有阻力臂短的优势.
如果“力量”指的是肌肉本身的产生的力,例如肌肉插入骨骼处的力,那么最强壮的是横截面最大的肌肉.这是因为单个骨骼肌纤维所产生的力相差不大,每个纤维大约产生0.3微牛的力.如果这样定义, 身体最强的肌肉通常是指股四头肌或臀大肌.
如果“力量”指的是肌肉本身的产生的力,例如肌肉插入骨骼处的力,那么最强壮的是横截面最大的肌肉.这是因为单个骨骼肌纤维所产生的力相差不大,每个纤维大约产生0.3微牛的力.如果这样定义, 身体最强的肌肉通常是指股四头肌或臀大肌.
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