背部的

The results were showed as following:The work intensity of trunk muscles activities was different in forestry work conditions; work intensity of Erector spinae were the maximum,approaching over 30%Maximum Voluntary Contraction,and EMG amplitudes of Rectus abdominis and Oblique external abdominis were 10%MVC.

研究结果如下：在不同作业工况中，躯干不同肌肉的工作强度存在差异，背部竖脊肌工作强度为最大，均在最大用力的30%左右，其次为腹直肌与腹外斜肌均在最大用力的10%左右。

Hume's should have rather poor supercilium/ crown contrast (as the supercilium should be off-white-buff rather than white) and have rather grey-black centres to coverts and tertials (offering reduced contrast with the mantle and also with the wing bars).

休氏柳莺应该有比较不明显的眉线/头侧线对比（因为眉线是略带皮黄色的白色而非白色），而且覆羽和三级飞羽中央是偏灰黑色，导致和背部与翼带的对比比较不明显。

B: The large bib is on the back of the competition vest and the small on the left side of the pants.

大的贴在运动背心背部，小的在短裤的左侧。

A: The large bib is on the back of the competition vest and the small on the left side of the pants.

大的贴在运动背心背部，小的在短裤的左侧。

B: The large bib is on the back of the competition vest and the small on the left side of the pants.

大的贴在运动背心背部，小的在短裤的左侧。训练时间和场地能在赛程表中找到吗？

Beefier guys should get a shirt with box pleats in the back—two folds between the shoulders blades—for a little more room, without extra volume.

比较健壮的人应该有一件在背后有箱形褶的T恤，这两个褶在肩分割线中间，这样背部就有了大一点的空间，而不多余。

The dielectric constants and conductivities of superficial tissues inside the body can be achieved by noninvasive measurements outside the body.

对人体背部电特性的重建，为该方法在临床医学方面的应用奠定了一定的基础。

Avoid sleeping on your back too the tendency if you do this is to give more chances on the occurrence of snoring , the reason for this is the draw back of soft palate and tongue , thus , constricting the air passage .

避免睡在你的背部过于；倾向，如果你这样做是要让更多的机会就出现打鼾，究其原因，是抽回来的软腭和舌，因此，制约了来回机票。

The boy started avoiding his father completely, disobeying him, and saying things behind his back.

该名男童开始避免他的父亲完全，不服从他，并说事情的背后他的背部。

I have little experience of Dark-throated Thrushes, but they have appeared to be somewhat plainer and greyer above with cleaner flanks and a more distinct boundary between the colour of the throat and the remainder of the breast.

对赤颈鸫我经验不多，但它们看起来背部有点较素较灰，有较乾净的胁部，以及喉部和胸部的颜色之间有更明显的界线。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。