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Therefore, in the case of inhalation are poor, should choose a small lead of the twin-screw pump.

因此在吸入条件不好的情况下，宜选择小导程的双螺杆泵。

AIM: To analyze the distribution of initial stress around screw implant.

目的：分析螺旋形种植体植入下颌骨后骨界面初始应力的分布。

And 6 intake valves. Tighten valve adjusting screw locknut to 27 N·m (20 lb-ft).

将气门调节螺丝防松螺母拧紧至27牛顿·米（20磅-英尺）。

Objective: To evaluate fixation effect of intermaxillary fixation screw.

文章摘要：目的：评价颌间结扎钉进行颌间牵引固定的疗效。

PURPOSE: To assess the clinical effect of intermaxillary traction titanium screw on complicated mandibular fracture.

目的：评价骨内颌间牵引钛钉在复杂下颌骨骨折中应用的临床效果。

The intermaxillary traction titanium screw could reduce the time of operation, and shows high efficiency in fixation of mandibular fracture.

骨内颌间牵引钛钉能缩短手术复位操作时间，对下颌骨的整复固定和功能恢复效果良好。

Methods: 63 cases with mandibular fractures were treated with open reduction, and then internal fixation were managed with intermaxillary fixation using dental arch splint or intermaxillary fixation screw randomly.

对63例下颌骨骨折切开复位内固定的患者随机采用牙弓夹板或颌间结扎钉进行颌间牵引固定，比较操作时间、治疗后牙周指数、张口度、咬合关系及骨折愈合情况。

A precision solution of the moment of inertia of a lead screw's crosssection was obtained by interpolation polynomial and numerical integral method.

在精密长丝杠的磨削过程中，由磨削力、磨削热和砂轮磨损所引起的被加工丝杠的螺距误差已不可忽略。

Finally, the error assessment of an involute driving screw verified that the software is feasible.

利用螺杆实例的初步验证，说明本软件的基本思路是正确可行的。

This kind of pipe features: lower density;sound-proof, when used as drain-pipe, water flow against the screw-thread inwall downwards, which solves the problem of noise.

这种管道的特点：密度较低；健全溜走，当用作排水管、水流对螺纹内壁调低它解决了噪声。

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％。