如果阀门用在高速流体(湍流)或热循环应用环境中，则螺纹阀座环应该锁焊到阀体上，避免松落。请在订购时加以指定说明。
Threaded seat rings for valves in services with high velocity turbulent flow or thermal cycling should be lock welded to the body to avoid loosening. Please specify.
固定方法有：前环骨折采用钢板固定；后环骨折分离采用骶骨棒，四孔方形钢板，松质骨螺钉固定。
The methods include posterior ring internal fixation by using sacral bars, four-hole square plates or cancellous screws with anterior ring fixed by plates.
松孔镀铬层应用于受重压的滑动摩擦件及耐热、抗蚀、耐磨零件，如内燃机汽缸内腔、活塞环等。
Loose hole plating chromic layer by weight used in the sliding friction parts and heat resistance, corrosion, wear parts, such as internal combustion engine cylinder lumen, piston rings.
文中对松尾环的理论分析到实际电路制作给予了较详细的论述。
In the paper loose tail loop was described in detail from theoretical analysis to practical circuit making.
比赛的痕迹：图中为一自行车选手的影子倒映在路上，这是在91届环法自行车赛，位于卡尔卡松市与尼姆市之间的第14赛段。
Tour shadows: Picture shows the shadow of a cyclist on the road during the 14th stage of the 91st Tour DE France cycling race between Carcassonne and Nimes.
本文通过给大鼠高蛋白质食物，皮下注射醋酸考的松及其饮水中加入四环素的方法，建立了卡氏肺孢子虫大鼠模型。
Rat models of Pneumocystis carinii pneumonia were induced by feeding on high protein diet, injecting cortisone acetate subcutaneously and drinking the water added tetracycline.
一种活塞环及其表面松孔镀铬工艺。
The invention relates to a piston ring and a surface spongy chromium plating technique thereof.
一种活塞环及其表面松孔镀锡工艺。
The invention relates to a piston ring and a surface spongy tin plating technique thereof.
一种活塞环及其表面松孔镀锡工艺。
The invention relates to a piston ring and a surface spongy tin plating technique thereof.
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