两管的

She's equipped with two 6-barrel 20 millimeter Vulcan cannons as well as two 40 millimeter machine guns.

它装备有两门20毫米口径6管火神加农炮以及两挺40毫米口径的机枪。

The company has domestic advanced production lines of a composite four, three composite production lines, two single-extrusion production line, air-conditioning pipe production line 2, and another flat-panel vulcanizer 30 Units, the annual production of 6,000,000 meters seal, hose 500,000 meters.

公司拥有国内先进的四复合生产线一条，三复合生产线两条，单挤出生产线两条，空调管生产线二条，另有平板硫化机30台，年生产密封条600万米，胶管50万米。

The SBP,DBP,HR,the time of eyes open,the time of extubate,the cases with PONV,the average value of VAS whitin 8 hours and the dosage of propofol were recorded in preanesthesia,proanesthesia,the fifth minute in aeroperitoneum and the time of operation completed.

记录麻醉前、麻醉后(气管插管后或硬膜外平面固定后期气腹前)、气腹后5min及术毕时的SBP、DBP、HR、呼之睁眼时间、拔管时间、术后恶心呕吐发生例数及8h内的平均VAS评分、两组异丙酚的用量。

Methods There were four characteristics compared to the conventional dacryocystorhinostomy:(1) need not cut inner canthal ligament;(2) two U-shape petals in the lacrimal sac and nasal mucosa,(3) need not suture between the two petals,(4) did not placed the tube during the operation or after the operation.

在传统的泪囊鼻腔吻合术的基础上进行了4方面改良：内眦韧带不断离；做泪囊和鼻粘膜两个&U&型瓣，两瓣上面填充可止血和吸收的明胶海绵；两瓣间无需缝合；术中及术后不放置引流管。

In the design of the compensators and supports of the piping line, th e amount and the recuperability of the fixed support s should be reduced as much as possible, and the distance between any two fixed support s should be enlarged as much as possible according to the features of the piping line, from which the economic benefit of the piping line can be fully embodied.

在管系补偿器与支架的设计中，应尽可能减少固定支架的数量及固定支架的复原力，两个固定支架间距离可根据管系特点尽可能加大，将使管网经济性得到充分体现。

The result of clustering based on quantitative data of vessel elements suggests that the Sonneratia species evolved into two clades, one including S. caseoalris and S. paracaseolaris that has the wider vessel and lower pore density suggesting a high conducting efficiency, the other including S. alba, S. ovata, S. apetala and S. hainanensis that has the narrower vessel and higher pore density resulting in high conducting safety.

导管数量特徵的聚类分析可以推测海桑属植物沿两支进化，一支进化为水分输导效率高的种类（即导管直径宽和输导面积大，管孔密度小，如海桑和拟海桑），另一支进化为水分输导安全性高的种类（即导管直径窄、输导面积小，管孔密度大，如杯萼海桑、卵叶海桑、无瓣海桑、海南海桑）。

The result of clustering based on quantitative data of vessel elements suggests that the Sonneratia species evolved into two clades,one including S. aseoalris and S.paracaseolaris that has the wider vessel and lower pore density sug esting a high conducting eficiency,the other including S.alba,S. ovata,S.apetala and S.hainanensis that has the narrower vessel and higher pore density resulting in high conducting safety.

导管数量特征的聚类分析可以推测海桑属植物沿两支进化，一支进化为水分输导效率高的种类(即导管直径宽和输导面积大，管孔密度小，如海桑和拟海桑)，另一支进化为水分输导安全性高的种类(即导管直径窄、输导面积小，管孔密度大，如杯萼海桑、卵叶海桑、无瓣海桑、海南海桑)。

Methods All cases were divided into two groups:medical obturation glue group, which were used medical glue in hepatolobectomy of APLD from March 2002 to December,2005;Controlled group, which were not used medical glue from January,1995 to February,2002.Abdominal drainage amount, reserved drainage tube time, subphrenic infection were compared between the two groups.

将所有病例分成两组，2002年3月～2005年12月应用医用创面封闭胶在APLD肝叶切除中病例设为A组，1995年1月～2002年2月未用医用创面封闭胶于肝叶切除APLD病例进行对比研究，比较应用创面封闭胶处理肝断面和不用创面封闭胶的两组病例腹腔引流量、带管时间以及膈下感染发生情况。

Measure two or more points and automatically get segment length, total length and wall area.

两个或两个以上的测量点，并自动获得部分长度，总长度和管壁面积。

Based on the principle that there exists an equal pressure drop for a tube with average parameters and another one with deviation parameters the authors have worked out an iterative procedure for determining the flow rate deviation factor η 1 of a boiler water wall.

根据平均管与偏差管压降相等的原理，在考虑汽水两相摩擦阻力压降与局部阻力压降的基础上，建立了水冷壁流量偏差系数ηl 的迭代求解方法。

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％。