The among them and most important is a certain type core and the construction of the type, for example adopt the whole the type of type still, and their fixed position and tight way of.

其中最重要的是确定型芯和型腔的结构，例如是采用整体式还是镶拼式，以及它们的定位和固紧方式。

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Maybe your shoulders are tight because you've been working in the same position for four hours straight.

或许由于你坐在同一个位置持续工作了4小时，你的肩可能会很酸。

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When you do it in a standing position, keep your abs and lower back tight to support your spine.

当你站在它的位置，让您的绝对值和腰部紧来支持你的脊椎。

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After all the talk over the Wales tight-head position in the build-up, there were only a handful of scrums in the first half-hour.

BBC: Wales 12-19 New Zealand

Im sitting tight with an overweighted position of 8% and white knuckles.

FORBES: Time to buy some also-rans

The Maple Leafs' fourth win in five games strengthened their position in the tight Eastern Conference playoff race.

WSJ: Reimer makes 27 saves in Leafs' win over Devils