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Under financial support by the Guanzhong Irrigation Improvement Project loaned by WB,the choice for the shapes of the water measuring flumes in U-shape canals have been carried out,based on the choice research,the straight wall type water measuring flume in U-shape canal was proposed for the optimal shape.

对U形渠道量水槽进行了选型，在选型的基础上，提出以U形渠道直壁式量水槽作为本研究的优选体型，并对U形渠道直壁式量水槽的体型、喉道长度、喉道宽度、过渡段长度、水尺位置、设计方法进行了优化研究，所得结果已在工程实践中应用，取得了良好的经济效益和社会效益。

Cast iron flat feet can be tested with the right-angle-foot right-angle ruler can not be tested using only two parts of the verticality of the gauge, cast iron flat foot also applies to equipment installation and inspection.

铸铁平尺可以配合直角尺检验只用直角尺无法检验的两机件的垂直度的量具，铸铁平尺还适用于设备安装和检查。

The calculation results on the fixed wheel plane gate of Deqing gate showed that t...

对德清大闸定轮平面闸门的数值计算结果表明：水头对闸门的影响总趋势是使其自振频率降低、振动模态发生变化；闸门局部开启工况第 1阶频率较低，振型主要是门叶沿竖直方向的整体振动；低阶振动模态中除门叶竖直方向的整体振动模态外，其余各阶均显示为门叶的弹性变形振动。

Chrome steel products mainly include: Crowbar stay wrenches, wrench to stay single, stay-mei dual-use wrenches, percussion stay wrenches, bending Plum wrench handle with hexagonal wrench, F-type wrench, single-head wrench plum, plum bending percussion Handle wrenches, straight shank percussion Plum wrench, Crowbar Wrench plum, plum blossom wrench straight shank, convex-type percussion Plum wrench, double-headed wrench Plum, fitter flat shovel, double-headed C-type wrenches, double-headed wrench stay B double-headed Plum wrench, crowbar sharp, hook wrench, valve wrench, Afterburning shot, top, drill rod, curved handle percussion stay wrenches, ratchet wrenches, high-neck single-convex head Plum wrench, wrench and attachment sleeve.

铬钢产品主要有：撬棒呆扳手，单头呆扳手，呆梅两用扳手，敲击呆扳手，弯柄梅花扳手，内六角扳手， F型扳手，单头梅花扳手，弯柄敲击梅花扳手，直柄敲击梅花扳手，撬棒梅花扳手，直柄梅花扳手，凸型敲击梅花扳手，双头梅花扳手，钳工扁铲，双头C型扳手，双头呆扳手，乙型双头梅花扳手，尖撬棍，勾扳手，阀门扳手，加力杆，顶尖，钢钎，弯柄敲击呆扳手，棘轮扳手，高颈凸型单头梅花扳手，套筒扳手及附件。

This paper is dealt with application of line burner to direct-burning hot-blast furnace of spray dryer in a dyestuff industry company of Hubei province.

论述了以线形燃烧器为核心的直燃式热风装置在湖北某染料化工企业喷雾干燥塔上的应用情况，并着重对线形燃烧器直燃式热风装置、蒸汽锅炉热风装置和电加热热风装置的能耗作了对比。

The Bosch company went a step further by making the venturi hourglass-shaped, to more closely approximate most engine痴 rich-lean-rich fuel curves.

这里有个燃油直喷的技术分析，缸内燃油直喷技术在70年代之后才逐渐成熟，直到今天，在电子计算机的帮助下，才刚成为卖点。

In power, only a6l Audi is in-line 4-cylinder engine, although there are turbocharged gasoline direct injection system and with the help, but the maximum power and torque than the other two big 6-cylinder engine displacement is lower.

在动力方面，只有奥迪a6l是直列4缸发动机，虽然有涡轮增压和汽油直喷系统的帮助，但是最大功率和扭矩都要比其它两款大排量6缸发动机要低。

The 3D precise geometrical model of a straight bevel gear was established by using UG with the sphere involutes.

在UG中以球面渐开线方法建立了精确的直齿圆锥齿轮三维几何模型，采用圆弧曲线对直齿圆锥齿轮齿廓进行修形，给出了最大修形量、修形圆弧中心和半径的确定方法。

In case of direct injection at the latter stage of n-heptane high temperature reaction or nearly after the high temperature reaction, diffusive combustion of iso-octane mainly occurs.

研究发现直喷异辛烷的燃烧模式与其喷入缸内时对应的预喷正庚烷HCCI放热的不同阶段有关，通过控制异辛烷直喷时刻可以实现其不同燃烧模式的调制。

By timely and spatially controlling the physical and chemical characteristics of the fuel at both port injection stage and in-cylinder direct injection stage, HCCI/DI stratified compound combustion is developed to combine the advantages of HCCI and conventional DICI on cycle-to-cycle basis and achieve clean and efficient combustion at full load ranges without misfiring and knocking.Firstly, three types of dual fuel including n-heptane/diesel, iso-octane/diesel and ethanol/bio-diesel a...更多re utilized to investigate the combustion and emission characteristics of HCCI/DI stratified compound combustion. The experimental results indicate that n-heptane/diesel HCCI/DI combustion presents a three-stage heat release consisting of HCCI low temperature heat release, high temperature heat release and diesel diffusive combustion.

本文提出的基于燃料设计与管理的HCCI/DI分层复合燃烧是一种将HCCI燃烧和传统缸内直喷压燃融为一体的新型燃烧方式，通过对燃料理化特性的设计和在预喷与直喷阶段从时间尺度和空间尺度上对均质和非均质混合气制备过程的控制和管理，在发动机的一个工作循环中将均质混合气的HCCI燃烧和非均质混合气的DICI扩散燃烧相融合，彻底消除了HCCI燃烧在小负荷失火和大负荷爆震的弊病，实现了发动机全负荷范围内的高效清洁燃烧。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷