3 samples of vertical clip on the holder. Clip shoulds not be too tight or too loose, to prevent deformation or fall off.
将试样垂直夹在夹持器上。夹的不宜过紧或过松，以防止试样变形或脱落。
If your skin is dry, the paper will be clean, too, but your face skin will feel flaky, dry, and tight after you have wiped it.
如果你的皮肤属于干性的，那么用纸擦拭也会很干净，但是擦拭后脸上皮肤会感觉容易脱落，干燥，紧绷。
In addition, spectroscopic observations with ground-based telescopes further reveal that one of the stars is actually a tight binary that is too compact to be resolved even by Hubble.
另外，地面望远镜的分光镜观察结果进一步揭示出它们其中的一颗恒星实际上是一对紧密的双星组成的，它们距离太近以至于哈勃望远镜不能区分出来。
It's just a tricky place with very tight corners and you try to be quick in a straight line, so you don't want too much downforce but it is also slippery.
连续的慢速弯角是很难处理的地方，你必须尽力走直线来快速通过，因此你不想要太多的下压力，但是同时又很容易发生侧滑。
Packing gland can't be screwed too tight, keep liquid leaking drop by drop, otherwise it maybe cause to packing burn down.
填料压盖不能拧得过紧，保持液体有滴状泄漏，否则泵运转时可能导致填料烧坏。
The tension of generator driving belt must be adjusted correctly; it can not be too loose or too tight.
发电机传动皮带张力的调整应该适度，既不能过松也不可过紧。
If you're worried about disappointing your parents, then you'll be too nervous, distracted and physically tight to swim well.
如果你担心会让你的父母失望，那你将会过于紧张，分散注意力，身体状态紧绷以期游得好。
Bernstein's publication, "scalp Laxity Paradox". If the scalp is too tight, taking a normal size strip may be impossible.
如果头皮很紧绷的话，要想选择向正常那样大小的伤口是不可能的。
However, I am still very happy with the ride, because I do get to finish without too much problem and my thighs aren't as tight as they used to be when I came back from previous rides.
但是心情无论如何超级开心，因为跟骑又可以跟到完了，而且回到家今天的大腿是软的！
However, I am still very happy with the ride, because I do get to finish without too much problem and my thighs aren't as tight as they used to be when I came back from previous rides.
但是心情无论如何超级开心，因为跟骑又可以跟到完了，而且回到家今天的大腿是软的！
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