可更换的

This technique can meet requirement of drilling a well to the planned depth without bit replacement.

该技术可满足一只钻头钻至设计井深、中途不更换钻头的要求，而且对钻机无特殊要求，可实现对油层段的裸眼测井。

The degree that the strainer blocks up may show out on the piezometer in filtering oil vehicle running process , respond to the strainer cleaning or changing a strainer in time (to have all filtering oil vehicle special use but be for replacement's using while pressure reaches 0.35 MPa,order if necessaries is other), Gage pressure continues rising when exceeding 0.4 MPa , just meeting proper motion opens a relief valve , part oil liquid essence fliteration does not pass henceforth , returns to an oil pump directly attract the oil cavity, therefore filtering oil vehicle output rate of flow just is able to come down, to play filter oil vehicle's to avoiding damaging role.

在滤油车运行过程中滤芯堵塞的程度可在压力表上显示出，当压力达到0.35MPa时，应及时清洗或更换滤芯(备有滤油车专用滤芯可供更换用，如需可另外订购)，表压继续上升超过0.4MPa时，安全阀便会自行开启，此后部分油液不经过精过滤，直接回到油泵吸油腔，所以滤油车的输出流量便会下降，以起到避免损坏滤油车的作用。

Under this kind of circumstances, user can replace the safety fuse by themselves without replace the IC board.

多数情况下，只要电流冲击不过大，使用者可自行更换备用的保险丝，无须更换整片IC板。

Of Taiwan and certain of overseas secondhand grinder factory, we also provided the service of hydrostatic spindle substitute for different kinds of secondhand surface grinders of internal famous surface grinder manufactories, and their works all deserved excellent evaluation. So it can supply different clients diversification selectiveness.

除了中小型平面磨床搭配静压主轴后，可大幅提升加工效率及加工品质外，尤其在龙门型平面磨床上的应用，可完全克服一般制造厂对於振刀痕的问题，并能有效提升加工品质及效率，只要在正常使用情况下，静压主轴的寿命几乎可达十年以上免更换，减少客户在主轴设备的维修及更新费用。

Similarly, if the gypsum is replaced by sodium sulfate, the sulphur and sodium carbonate solution can be obtained.

同样的原理，如果将石膏更换为芒硝，可得到硫和碳酸钠溶液，进一步加工可得纯碱。

The next year I did better still, for I spaded up all the land which I required, about a third of an acre, and I learned from the experience of both years, not being in the least awed by many celebrated works on husbandry, Arthur Young (10) among the rest, that if one would live simply and eat only the crop which he raised, and raise no more than he ate, and not exchange it for an insufficient quantity of more luxurious and expensive things, he would need to cultivate only a few rods of ground, and that it would be cheaper to spade up that than to use oxen to plow it, and to select a fresh spot from time to time than to manure the old, and he could do all his necessary farm work as it were with his left hand at odd hours in the summer; and thus he would not be tied to an ox, or horse, or cow, or pig, as at present.

第二年，我就干得更好了，因为我把总需要量的全部土地统统种上了，只不过一英亩的三分之一，从这两年的经验中，我发现了我没有给那些农业巨著吓倒，包括亚瑟·扬的著作在内。我发现一个人如果要简单地生活，只吃他自己收获的粮食，而且并不耕种得超过他的需要，也不无餍足地交换更奢侈、更昂贵的物品，那末他只要耕几平方杆的地就够了：用铲子比用牛耕又便宜得多；每次可更换一块新地，以免给旧地不断地施肥，而一切农场上的必要劳动，只要他夏天有空闲的时候略略做一做就够了；这样他就不会像日前的人们那样去和一头牛，或马，或母牛，或猪猡，捆绑在一起。

The M249 is gas-operated and air-cooled. It has a quick-change barrel, allowing the gunner to rapidly replace an overheated or jammed barrel. A folding bipod is attached near the front of the gun, though a M192 LGM tripod is also available. It can be fed from both linked ammunition and STANAG magazines, like those used in the M16 and M4. This allows the SAW gunner to use rifleman's magazines as an emergency source of ammunition in the event that he runs out of linked rounds. However, this will often cause malfunctions because the magazine spring has difficulty feeding rounds quickly enough to match the SAW's high cyclic rate.

M249采用气动、风冷原理，枪管可快速更换令机枪手在枪管故障或过热时无须浪费时间修理，机枪下前方装有折叠式两脚架，也可使用M192轻机枪的三脚架。M249采用弹链及STANAG弹匣双重供弹，机枪手在断链缺乏弹药等紧急情况时可向装备M16或M4步枪的步兵借用弹匣来射击，但以弹匣供弹时会因弹匣弹簧弹力太大而射速过高及可能出现故障。

The percentage of linear and so quick Figure 1 Three common control valve sleeve sleeve diagram Interchangeability of parts from Ball Valves the valve to see some adjusting mechanism trim can be easily replaced and maintained, for example, the sleeve valve sleeve can be easily replaced to achieve different flow characteristics; top and bottom-oriented trim can be easily turn the spool and the valve seat to achieve positive and anti-body to replace the valve body to achieve the air to open the way to replace gas off; valve isolation valve can be easily dismantled for the seat replacement and cleaning.

快开 线性等百分比图1 三种常用套筒控制阀的套筒示意图从阀内件的互换性看，一些调节机构的阀内件可方便地更换和维护，例如，套筒阀可方便地更换套筒实现不同流量特性；顶底导向的阀内件可方便地翻转阀芯和阀座来实现正体阀与反体阀的更换，从而实现气开和气关方式的更换；阀体分离阀可方便地拆卸，用于阀座更换和清洗。

A deviation to enable business card printing and membership card making more neatly away material; business card printing and membership card Studio Center-drum for double-deck, using thermostatical hollow water circulation system structure, plated nickel plating avoids corrosion, Nano-imprint lithography drum machine, safe and reliable braking equipment; spam satellite business card printing and membership card, four business card printing and membership card production unit in the Centre of coining drum distribution around the business card printing and membership card making support adoption of the integral structure, intensity that cannot be easily; Center for the imprint drum version, roller roller, using separate servo motors between the gearless, Business card printing and membership card making length is not supported by gear pitch in roll-wide choice; business card printing and membership card making pressure, roller and roller pressure singlein servo motor and with memory with two types of regulation, accurate and rapid adjustment; closed ceramic Roller blade device ink to ensure that the business card printing and membership card making ink stability, blade-like device for pneumatic compression; taojian the plate cylinder, taojian-reseaus and roller, the portal structure of push-pull roller and taojian beckenbachannular roller to replace a simple and quick; roller servomotor-driven business card printing and membership card production and business card printing and membership card making machine be a certain speed, stopping the slow down to prevent the ink roller network hang dry knot, splash-proof ink installed equipment downtime or roller pressure, from the printing plate out of arrive﹖, stop to ink, the plate cylinder the full delivery from the pressure to keep the printing plate clean; stainless steel-monlchamus tuhung-glass to prevent ink prints get dirty; dryer direct to the wind, air flow loss small high efficiency, reduces noise scene, new oven heat energy to secondary structures, control temperature control system using intelligentized; traction roll at the same time acts as both a cooling rolls, new structure increases cooling effect.

纠偏，使制卡和会员卡制作走料更加整齐；制卡和会员卡制作部中心大滚筒为双层空心式，采用恒温水循环系统结构，表面镀镍处理可避免锈蚀，中心压印滚筒采用机械制动装置，安全可靠；卫星式制卡和会员卡制作方式，4个制卡和会员卡制作单元分布在中心压印滚筒周围，制卡和会员卡制作支架采用整体式结构，强度好不易变形；中心压印滚筒、版辊筒、网纹辊之间采用独立伺服电机无齿轮传动，制卡和会员卡制作长度不受齿轮节距限制，在版辊范围内任意选择；制卡和会员卡制作压力、网纹辊与版辊之间的压力分别用伺服电机调整，并具有记忆功能，调整有两种调节方式，精确调整与快速调节；陶瓷网纹辊封闭刮刀装置供墨，可确保制卡和会员卡制作过程中油墨稳定饱满，刮刀装置为气动加压；套筒式印版滚筒，套筒式网纹辊筒，门式推拉式结构使套筒版辊与套筒网纹辊更换简单快速；网纹辊由伺服电机驱动，制卡和会员卡制作时与制卡和会员卡制作机保持相对一定的速度，停机时则放慢速度匀墨，防止网纹辊网坑枯结，两边安装防油墨泼溅装置，在停机或离压时，网纹辊立即从印版脱离开来，停止给墨，印版滚筒把墨完全传递后离压，保持印版清洁；不锈钢接墨斗，防止油墨滴漏蹭脏印品；干燥箱采用直接进风型式，风量损失小效率高，减小了现场噪音，新型烘箱结构热能可二次利用，控制采用智能化恒温系统；牵引辊可同时兼作冷却辊使用，新型结构增大了冷却效果。

As high-voltage electrostatic generator poor working environment, tens of thousands of times every day of the Bodong, the Company starting from this factor will be completely isolated road circuit and gas, and static electricity generated in a fully enclosed part of Xiang Tinei, so that dust can not enter , Can greatly reduce damage frequency circuit boards used four different connectors to ensure that the Bu Kuaicuo Next, I so no matter how far away from you, regardless of whether you know circuit, can be a direct replacement of circuit boards, not only reduces maintenance Cost, saving maintenance time.

由于高压静电发生器工作环境恶劣，每天成千上万次的拨动，本公司从这一因素出发，将电路和气路完全隔离，并将静电产生部分完全密封在一个箱体内，使粉尘无法进入，可大大降低损坏频率；线路板采用四个不同的接插件，可确保不会错接，这样无论您离我多远，无论您是否懂得电路，都可直接更换线路板，不但降低了维修成本，还节约了维修时间。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。