底槽

A: (1) to thread a needle position and the location to the end of the needle for accurate;(2) to thread a needle, thread a height that you want to play your cards right-to-lead down to needle can be hook line hook the hyriopsis accurate;(3) to thread a needle and the top of the line hyriopsis-Kwan, the distance to 0.7-1 ~ guests'glasses;(4) homulus line-pin recesses to smooth, hook-billed is not too large or too small, so as not to overly homulus line, break, and so on.

答：(1)穿线针位置与底针位置要对准确；(2)穿线针高度要得当，穿线针引线下降时以能被钩线三角准确钩住为准；(3)穿线针与钧线三角顶端工作时的距离一般以0.7—1mm为宜；(4)钩线针的凹槽要光滑，钩嘴不可过大或过小，以免造成不钩线、断线等故障。

Cutting Products has the main blade blade, paper cutter sub-divided into paper and single-pole, grinding wheel, slotting machine knives, veneer cutting blade, cutting blade on three sides, rotating cutting knife, cross-cutting knives, cylindrical toilet paper cutter, sub - knife-cut from top to bottom, leather upper and lower knives, leather cutter, cutting knife, cut circle engraved blade, cut pipe cutter, bowl blade, Introduction paper, cutting knives, meat slicing knives, vegetable knife slices, ham thin knife, round plate rolling scissors, slitting Slitter knives, cutting blade, bearing knives, knife lap, multi-blade knife ring, butterfly knives, flower asbestos knives, copper foil cutting knife, foil cutter, cutting knife PCB , PP cutting knife, cut the foot blades, blade shearing machine, rolling blade, steel cutting knives, knives broken scrap, plastics crushing knives, pelletizing knives, pelletizing hob, hob pelletizing alloys, rubber blade, closure at the end of knife, bag machine knives, even the volume BAG blade, plywood blade, woodworking planer knives, slicer knives, punching machine blade, scissors fly films, scraper, blade coating,±Series, tungsten steel blades, tungsten steel round blade, cemented carbide paper knife, three holes blade, chemical fiber blades,knives, profile knives, cutting knives, such as cloth-like, non-standard blade can be customized.

主要刀片产品有切纸刀片，分纸刀，分纸单刀及砂轮，开槽机刀，单板切纸刀片，三面切纸刀片，旋转切纸刀，横切刀，圆筒卫生纸切刀，分切上下刀，皮革上下刀，皮革裁刀，切光刀，切刻圆刀片，切管刀，碗刀片，导纸片，模切刀，羊肉切片刀，蔬菜切片刀，火腿薄切刀，圆盘滚剪刀，纵剪分条刀，切条刀片，轴承刀，光刀圈，多刃刀圈，蝶形刀，石棉瓦花刀，铜箔裁切刀，铝箔切刀，线路板裁切刀，PP裁切刀，切脚机刀片，剪板机刀片，轧钢刀片，钢筋剪断刀，废钢破碎刀，塑料粉碎刀，切粒刀，切粒滚刀，合金切粒滚刀，橡胶刀片，底封刀，制袋机刀，连卷袋刀片，胶合板刀片，木工刨刀，切片机刀，冲剪机刀片，飞剪刀片，刮刀，涂布刮刀，薄刀系列，钨钢薄刀片，钨钢圆刀片，超硬合金裁纸刀，三孔刀片，化纤刀片，切布刀，齿形刀，样布裁切刀等，非标刀片可定制。

Pre-curved palm grooves increase in activity flexibility; Full rubber cup outsole, man-shaped bone pattern style, super wear-resistant characteristics; high-tech new materials and traditional structures, to ease and reduce the impact force to help the campaigners feel the perfection comfortable feeling comfortable, durable comfort. adidas has represented a special kind of status symbol.

前掌弯曲凹槽增加活动灵活性；全橡胶杯形外底，人字型骨纹式样，超强耐磨特点；高科技新材料和传统结构，缓解并降低冲击力，帮助运动者体会到完美的舒适自如感，经久舒适。adidas一直代表着一种特別的地位象征。

Pre-curved palm grooves increase in activity flexibility; Full rubber cup outsole, man-shaped bone pattern style, super wear-resistant characteristics; high-tech new materials and traditional structures, to ease and reduce the impact force to help the campaigners feel the perfection comfortable feeling comfortable, durable comfortable wear. adidas has represented a special kind of status symbol.

前掌弯曲凹槽增加活动灵活性；全橡胶杯形外底，人字型骨纹式样，超强耐磨特点；高科技新材料和传统结构，缓解并降低冲击力，帮助运动者体会到完美的舒适自如感，经久舒适耐穿。adidas一直代表着一种特別的地位象征。

The cut-off valve with pilot valve without hand wheel, stem and lift nut inside will guide block and guide slot Butterfly Valves to guide sleeve, the disc-shaped disc to disc type bowl shape, and holes in the bottom of the flap valve to open, the valve cover of the original valve stem hole to hole diversion, because of increased pressure ring, ring, and the valve flap to class mortar, so that the flow passage separated the upper chamber cavity, external cavity, cavity, in the cavity and The external cavity increases with draft tube and stainless steel manual ball valve, flap valve in the cover plate and the center of the end of installing the spring, the upper flap valve install compression seal of the pressure ring, outside the cavity of the wall to open a Drainage holes.

带先导球阀的截止阀无手轮、阀杆和内升降螺母，将导向块与导向槽改为导向套，将盘形阀瓣改为类钵体形阀瓣，并在底部开阀瓣孔，电动蝶阀将阀盖原阀杆孔改为导流孔，因增加压环、密封圈和将阀瓣改为类钵体，使上通流腔分隔为上腔、外腔、内腔，在上腔与外腔的外部加设有导流管与不锈钢手动球阀，在盖板与阀瓣底的中心部加设弹簧，阀瓣上部加设压紧密封圈的压环，在外腔的壁上开有放水孔。

A fan frame includes a body and a fan wire fixed on the body. The body is provided with a fixing spring plate which forms a free end. A fixing groove, through which the fan wire passes, is formed between the fixing spring plate and the outer surface of the body. The outer surface of the body protrudes outward to form at least one stop dog. The top end of the stop dog extends in the side direction and exceeds the free end of the fixing spring plate. The stop dog and the fixing spring plate form a space to contain the fan wire in the side direction. A guidance surface is gradually formed from the bottom end to the top end of the stop dog.

一种扇框，包括一本体及固定在本体上的风扇导线，该本体上连接设有一固定弹片，该固定弹片形成一自由端，所述固定弹片与本体的外表面之间形成供风扇导线穿设的一固定槽，该本体的外表面向外突设形成有至少一挡块，该挡块的顶端在侧视方向上延伸超过该固定弹片的自由端，该挡块与所述固定弹片在侧视方向上形成一个收容风扇导线的收容空间，且该挡块的底端至顶端逐渐形成一导引面。

The approximate analytic solution for the plane problem of semi infinite elastic solid subjected to a concentrated force at the midpoint of bottom of a groove is given by means of complex stress function.

运用复变函数方法，求出了半无限弹性体通过刻槽之底施以集中力的平面弹性应力场的近似解析解，并进行了光弹性试验，理论上求得的应力分布与试验结果相吻合

Paper products are the main blade razor blades, the paper knife, the paper single-pole/double-throw and grinding wheel, slot machines, knives, razor blades veneer Paper, Paper three blades, rotating Paper knife, cross-cutting knives, cylindrical toilet paper cutter, cut - Knife from top to bottom, leather knife from top to bottom, leather Caidao, cutting knife, cut circle engraved blade, cut the knife blade Bowl I. paper, die-cutting knife, slice lamb knife, knife slicing vegetables, ham Bo Cutter, Disc Rolling scissors, Slitting points of the knife, cutting blade, bearing knives, knife lap, multi-bladed knife circle, butterfly knives, Dan Mianwa spent knife, knife cut copper foil, aluminum foil cutter, cutting board, knives, PP cutting knives, cutting-foot blade, cutting plate machine blades, steel rolling blade, cut steel knife, Scrap broken knife, smash the plastic knives, Qieli knives, Qieli hob, alloy Qieli hob, rubber blade, at the end of Closure knife, bag of knives, even a blade Vol bags, plywood blade, carpentry Paodao, slicing machines, knives, razor blades Chongjian plane, flying scissors film, Blade, Blade coating, Bodao series, thin tungsten steel blade, tungsten steel round Blade, super-hard alloy Cai Zhidao, woven bags cutting blade, Juan Bidao films, tire cutting blade, feed blade, clipart blade, the blade three holes, Xiumei Dao films, chemical fiber blades, Qiebu knife, knife tooth, cloth-like CD Cutter, non-standard blade can be customized.

主要刀片产品有切纸刀片，分纸刀，分纸单刀及砂轮，开槽机刀，单板切纸刀片，三面切纸刀片，旋转切纸刀，横切刀，圆筒卫生纸切刀，分切上下刀，皮革上下刀，皮革裁刀，切光刀，切刻圆刀片，切管刀，碗刀片，导纸片，模切刀，羊肉切片刀，蔬菜切片刀，火腿薄切刀，圆盘滚剪刀，纵剪分条刀，切条刀片，轴承刀，光刀圈，多刃刀圈，蝶形刀，石棉瓦花刀，铜箔裁切刀，铝箔切刀，线路板裁切刀，PP裁切刀，切脚机刀片，剪板机刀片，轧钢刀片，钢筋剪断刀，废钢破碎刀，塑料粉碎刀，切粒刀，切粒滚刀，合金切粒滚刀，橡胶刀片，底封刀，制袋机刀，连卷袋刀片，胶合板刀片，木工刨刀，切片机刀，冲剪机刀片，飞剪刀片，刮刀，涂布刮刀，薄刀系列，钨钢薄刀片，钨钢圆刀片，超硬合金裁纸刀，切编织袋刀片，卷笔刀片，轮胎修剪刀片，饲料刀片，美工刀片，三孔刀片，修眉刀片，化纤刀片，切布刀，齿形刀，样布裁切刀等，非标刀片可定制。

The design key point of large draining sand submersible pump for mine is discussed,and the method of increase efficiency is introduced.

如何解决低水头径流式电站的防沙问题，防止发电进水口淤积，减少泥沙过机一直是水工建筑物检修的技术难点，通过对葛洲坝大江电厂排沙底孔上游检修门槽底坎区域冲坑成因的分析及处理方法的研究，希望能够对同类型水工建筑物检修提供借鉴。

As a protective coating for water ballast tanks, cofferdams, bilges, void spaces, etc.

用作压载水舱、贮槽、空隔舱、舱底以及空隙部位的防护。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。