we are sanitary ware manufacturer in china

2008年2月21日星期四

婚车租赁注意事项

一要至少看到车辆的实景照片。有的公司只给你看图片,让你选择车型。但千万别被漂亮的婚车照片所迷惑,那些看似华丽的图片可能是从一些国外杂志上扫描来的,或是花钱买来的样照,也许接新娘那天开过来的根本就不是你看中的那辆。看看实景照至少可以让你判断车辆的新旧度。

  
二要认准车牌号。牌号是每一车辆的合法身份证明。如果婚礼公司在让你下婚车订单时,给你确认的是没有牌号,或牌号隐藏掉的车,那你可得留点神了,很多纠纷就是这样来的。那些挂外地车牌的豪华车也值得细细考查。

   三要小心“黑婚车”。正规租赁公司对用车都有一定的流程和规则。“黑婚车”,即驾驶员个人私自将公司或老板的车辆临时开出来做婚车,以赚点外快。

第四,婚礼公司说什么车都有,可能事实是什么车都没有;无法马上与你确定或告知牌号的一定不是自备车。

最后要提醒的是,春节前后是“结婚旺季”,要提前向租赁公司或婚庆公司预约,尤其是豪华车型往往更为“紧缺”。

合肥梦园汽车租赁公司提供合肥汽车租赁服务,合肥租车,合肥婚庆租车,合肥商务车租赁,以别克林肯、奥迪A6、别克君威,奥德赛车为主.根据客户不同需求提供合肥汽车租赁服务,也为各大企业单位、社会团体提供公务用车、会务用车、代客接机、婚礼配车及旅游包车长期或短期的租赁业务

2008年2月5日星期二

Check valve

A check valve is a type of valve which normally allows fluid (liquid or gas) to flow through it in one direction but not the opposite direction. Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Checks valves are often part of common household items. Although they are available in a wide range of sizes and costs, many check valves are very small, simple, and/or cheap. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.

An ball valves important concept in check valves is the cracking pressure which is the minimum upstream pressure at which the valve will operate. Typically the check valve is designed for and can therefore be specified for a specific cracking pressure.

Because of the force of gravity on the disc, various types of check valves need to be placed horizontally in an upright position to work properly, especially swing and lift check valves which are not spring loaded. Ball valves, particularly very small ones, are often less susceptible to this problem. Spring loading may work against the force of gravity, forcing the disc against the seat to help keep the valve shut in other orientations. The drawback is that there can be more resistance to forward flow

Shower Room

The Shower Room is the second dungeon found in the Perplexing Pool area. Most of its levels are in the Tile Lands style, which would explain why it got this name. You have to do some steps before you can access the Shower Room. First, you could either defeat the Toady Bloyster and get the Aquatic Mine or ignore it and build a bridge to cross. Next you will need Yellows to destroy the electric gate in front of a small pool. Don't put your blues in their Onion yet, you will need them to destroy the rock formation covering the cave. Now you could let your Red, Yellow, Purple, and White Pikmin pass the area. Use Purples to defeat the Toady Bloyster if you didn't then cash in the Aquatic Mine if you have time. Enter the Shower Room with all five types of Pikmin.

A faster way of accessing the Shower Room would be some sequence breaking. Take some Blues and run to the tub that surrounds the hole. Take a running start towards the hole and before you touch the wall, throw your Pikmin (you have to hold "A" so the Captain holds the Pikmin) and with a little skill and luck, the Pikmin will run over to the hole and unclog it. Now you can take almost 100 Yellows over and take down the gate!