1·The utility model provides an integral petroleum production tree, which is characterized in that a pipe cross and mutually connected main bars are a hollow and cuboid integral forging piece;
本实用新型提供一种整体式采油气树，其特征是四通和相互连接的主杆为一个空心长方体的整体锻压件；
2·Regulating regimes of metered heating system are analyzed by means of computer simulation. This paper gives the control mode of consumer heat inlet that applies to one-pipe cross-over heating system.
通过计算机模拟分析了计量供热系统的调节工况，给出了适用于单管跨越式供热系统的热力入口控制方式。
3·And in two places I need to cross a conduit with a 35 millimetres cold feed pipe.
但管外还要包隔热层而且电线管在两处要与35毫米的冷水管交叉，地方恰好不够。
4·But they 've got to be wrapped in lagging, remember. and in two places I need to cross a conduit with a 35 millimetres cold feed pipe. There's just not enough space.
但管外还要包隔热层而且电线管在两处要与35毫米的冷水管交叉，地方恰好不够。
5·The stress distribution of a curved pipe with an initial elliptic cross section under internal pressure was studied by using electric resistance strain method.
采用电阻应变测量技术研究了带有初始随圆度的弯管在纯内压作用下的应力分布。
6·By using the EYECAD, ISO drawings, cross sectional drawings, exact material tables and pipe specification tables can be accomplished.
EYECAD能生成可靠的ISO图纸、平剖图以及精确的材料表、工艺管线规格表等。
7·And it would define more tightly the terms cigarette, cigar, cigarillo, fine-cut tobacco and pipe tobacco in order to discourage the production of cross-over products.
而且这项提案还更严格地定义了卷烟、雪茄、小雪茄、细切烟和斗烟这些词语，以阻止交叉产品的生产。
8·Two routes can not be worn in the same tube, wire and heating, hot water, gas pipe between the parallel distance should not be less than 300mm, the cross should not be less than 100mm.
两路线不能穿同一管内，电线和暖气、热水、煤气管之间的平行距离不应小于300mm，交叉距离不应小于100mm。
9·Suitable for side expansion processing of Tee pipe fitting and Cross pipe fitting.
适合三通四通管件侧孔的预胀型加工。
10·In this paper, we have set up a mechanical model of the elastic-supported pipe conveying fluid and subjected to outside cross fluid flow.
本文建立了具有弹性支承的圆管在内外部流激发下的力学模型。