形状（保持直线和直角）
再一次，他们只能在有太阳的时候才能保持直线。
Again, they were able to keep to a straight path only when the sun was visible.
如果你保持直线，我们就可以与重力为友，而不是去克服它。
If our posture is upright, we can make friends with gravity, instead of fighting it.
保持直线飞行，包括高速的直线飞行，都不需要任何净外力。
To keep us travelling in a straight line, even at high speed, requires no nett force.
以腋窝为轴倾斜身体，体会身体在水中保持直线及水平的感觉。
Lean in through your armpit until you feel the line is straight and your body is balanced.
最近几年我们认识到一点，没有任何东西可以永远保持直线上升。
One thing we've realized over recent years is that nothing goes up in a straight line forever.
转向突然失控后，若车辆和前方道路情况允许保持直线行驶时，不可使用紧急制动。
After a sudden steering failure, the driver may not use emergency braking if the vehicle and the road conditions ahead allow the vehicle to go straight.
如果购物车决定向左走，你必须站到它的左手边，水平向右施力，这样它才能保持直线。
If your trolley is determined to go to the left, you have to position yourself on its left-hand side and apply pressure diagonally to the right in order to keep it in a straight line.
他说：“这个系统能使你运动系统兴奋，使你能非常协调地长时间保持直线行走的状态。”
"It's a system for turning on your locomotor system and making you walk or run in a very coordinated, straight-line fashion sustaining locomotion for a considerable time," he said.
以俯卧撑姿势开始，但是不用手掌撑地而是用肘部弯曲支撑。你的身体应该从肩膀到踝部保持直线。
Start to get in a Pushup position, but bend your elbows and rest your weight on your forearms instead of your hands.
当你加深双膝的弯曲幅度是，保持头顶到尾骨一条直线.
As you deepen the bend of the knees, maintain a straight line from the top of your head to your tailbone.
如果不考虑其他的，至少要做好这一点，那就是，让视线和显示屏大致在一条直线上，并且让你的手腕和肘部保持在一条直线上。
If nothing else, at least make sure your line of sight is relatively in line with your monitor, and that your wrists make a straight line to your elbows.
尽管跑步者沿着直线向前跑，保持梨状肌松弛有利于保持全身的柔韧性。
But though runners run straight ahead, keeping the piriformis muscle loose is important for overall flexibility.
踝、膝盖及髋保持在一条直线上。
与此同时，尽量把你的身体往后靠，使脊柱保持一条直线，直到你感觉自己的上背部得到了轻微的拉伸。
While grasping, lean back, keeping your spine in alignment, until you feel a slight stretch.
即使是换气的时候，你的身体都可以保持一条直线，从指尖到脚趾。
Even during the breath, you could run a straight line from my fingertips to my toes.
在非换气的划臂周期，虽然身体的其他部位在波动，但是头部应当保持与身体成直线的位置。
And on your non-breathing stroke, despite the undulation of the rest of your body, it is important trying to keep your head inline with your body line.
拉高机头保持水平直线飞行。
保持你的当前位置可在直线和弧线之间切换。
Switching between Lines and Arcs maintains your current position.
在爆胎后车身会发生跑偏，不要跟车的惯性较劲，尽量保持车辆直线行驶。
In the flat tire body will happen after running deviation, not with the car, try to keep fighting vehicle inertial straight road.
在撒哈拉沙漠和海滩上他们也做了相同的实验，被蒙住眼睛的测试者照样不能保持走出一条直线。
当通过一斜坡时，附在打孔机机壳两侧的可移动的配重可以帮助保持机器走直线球路。
Removable weights can be attached to either side of the aerator housing to help maintain a straight course when traversing a slop.
英国脊椎治疗协会会员兼注册按摩师蒂姆·哈曲福称：女性想要避免背痛的话应该试着将头和膝盖保持在一条直线上。
Tim Hutchful, a registered chiropractor and member of the British Chiropractic Association, said women looking to stave off back pain should try to keep their head and ankles in line.
如果作用在质点上所有的力是平衡的，质点将会保持静止或做做匀速直线运动。
If all the forces acting on a particle are balanced, the particle will either remain at rest or will continue to move in a straight line at a uniform velocity.
注册脊椎按摩师、英国脊椎治疗协会的成员蒂姆·哈区福称，想要预防背痛的女性可以试着将头部和脚踝保持在一条直线上。
Tim Hutchful, a registered chiropractor and member of the British Chiropractic Association, said women looking to stave off back pain should try to keep their head and ankles in line.
注意，你需要改变关键帧类型为直线，如果你希望岩浆的速度保持恒定的话。
Note that you will need to change the key-frame types to linear, if you want the lava's speed to be constant.
背线：自脖颈至肩部，微微向下，线条柔和，向后保持水平直线。
Topline: From the neck running slightly downwards to the Withers in a harmonious line, then running on straight and level.
背线：自脖颈至肩部，微微向下，线条柔和，向后保持水平直线。
Topline: From the neck running slightly downwards to the Withers in a harmonious line, then running on straight and level.
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