Slight tapping with a mallet may be required, but do not change the valve stem position.
如果需要，用木槌轻轻敲打，但是不要改变阀杆位置。
The stem can be installed in any position, but if a choice of stem positions exists, good practice dictates that the valve be installed with the stem horizontal.
阀杆可以安装在任何位置，但是如果能够选择阀杆位置的话，实践表明将阀杆水平安装在阀门上是最好的方式。
This will entail getting into a comfortable stem, face position, or jam, with both feet at a similar height, such that gravity isn't pulling you to one side.
这就需要找到两脚高度基本持平的一些舒适位置(stemfacepositionjam)，由此防止重力使你的身体偏向某一侧。
Valves should be installed in the (stem) vertical position with the pipe flow horizontal only. For installations other than this, please consult factory when ordering.
阀门应该只能安装在水平流向的管线上，其阀杆应该垂直向上。如果需要其它方式的安装，请在订购阀门时咨询工厂。
When the handwheel is rotated toward the open position the upper stem is moved away from the diaphragms allowing the spring to push the lower stem away from the seat.
当手轮象开启位置旋转时，上阀杆离开横膈膜，弹簧推动下阀杆离开阀座。
The valve stem and sealing surfaces are completely protected from dirt and corrosion by the stem cap, whether the valve is in an open or closed position.
不管是在阀门开启位置，还是关闭位置，阀杆和密封面有阀杆盖帽的保护，能防止污物入内，防止腐蚀。
By monitoring, the erode mechanism, speed and position of stem in working procedure has been known and measures and direction to control erode has been suggested.
通过监测，摸清了生产工况下管柱腐蚀的机理、速率和位置，提出了针对性强的防腐措施和方向。
Start stem O-ring seal over stem, then press into position as handle is pressed down over stem.
从阀杆上的阀杆O形环密封开始，然后在手柄安装在阀杆上后，将其压进手柄的位置上。
Play great positioning pin ensures disc not because butterfly plate gravity drop, also can be installed in the valve stem end adjustment block to ensure that the butterfly plate fixed position.
弹赞定位销可保证蝶板不会因为蝶板重力作用下坠，还可在下阀杆端部设置调整块来保证蝶板位置固定。
Position by the valve stem threads are divided into clear and dark bar bar gate valve two...
按阀杆的螺纹位置划分，可分为明杆闸阀和暗杆闸阀两种。
The spring return pneumatic actuators use an air supply to drive the valve stem in one direction and an internally loaded spring to return to the valve to its original position.
春季返回气动执行机构使用的空气供应，以推动一个方向阀杆和一个内部装载弹簧返回到原来的位置阀门。
NOTE: the valve is shipped in the closed position. The indicator on the plastic sleeve is aligned with the vertical scribed line on the stem.
注意：阀门装运时是处于关闭位置。塑料套筒上的指示器与阀杆上的垂直刻线对齐。
The valve stem with its grooved rings and positioning sleeve indicates the throttled position of the valve.
阀杆及其沟槽环和定位套筒显示阀门的节流位置。
A floorstand for handwheel actuated valves allows operation from above. Included is handwheel, non-rising stem, fittings, extension, and floorstand with gate position indicator.
用于手轮执行器阀门上的地轴承架可以在上方对阀门进行操作，包括手轮，暗杆，连接件，加长件，以及带闸板位置指示器的地轴承架。
Research on human embryonic stem cell put us in a position to make choice between scientific benefits and ethics.
人胚胎干细胞的研究使我们不得不在科学与道德之间作选择。
The plant height, ear position height and stem diameter were all increased.
植株高度、穗位高度显著增加；茎加粗，穗长、穗粗和穗粒重比对照增加；
It is connected to the required position of drilling stem to protect drilling stem without any influence on the normal working of drilling tool.
将它连接于所用钻柱的需要部位，保护钻柱、不影响钻具正常工作。
He noted that the lack of benefit could also stem from the fact that these retirees had to adjust to an unfamiliar job position or had to make lifestyle changes.
他同时指出没有收入来源，使得这些退休人员不得不从事他并不熟悉的工作，以求生活状态的改变。
To adopt lower-installed type valve stem and set up reversed sealing structure can ensure reliable sealing at the position of the stuffing.
采用下装式阀捍，设置倒密封结构，能确保填料处可靠密封。
With the valve in the fully closed position the stem length shall protrude a distance of at least twice that of the stem diameter above the top of the mounting flange.
在阀门完全关闭状态下，阀杆在连接法兰顶端上方需高出至少相当于阀杆直径两倍的长度。
With the valve in the fully closed position the stem length shall protrude a distance of at least twice that of the stem diameter above the top of the mounting flange.
在阀门完全关闭状态下，阀杆在连接法兰顶端上方需高出至少相当于阀杆直径两倍的长度。
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