闸

Driver's visor was provided with an upper and lower sliding shutter, which could be closed together.

驾驶员的观察口是一个可以上下滑动的闸板，必要的时候可以封闭起来。

Because surface water, the total gate has Tiaozha to safety property management departments have meter boxes insurance removed.

因为墙面有水，总闸已经跳闸，为了安全起见物业管理部门已经将电表箱的保险取走。

This paper also explores some guidelines after opening flood discharge gate of the water diversion pivot on low water.

并通过水工模型试验研究成果的分析，探讨了建在多沙河流卵砾石河床上的低水头引水枢纽闸后防冲设计的指导原则。

The advantages of this wedge are that it is highly resistant to corrosion and vibration.

这种楔形闸板的优点在于具有很好的耐腐蚀和抗振动的性能。

At first , without regard to temperature, calculate structure's stress and look for the reason of crack.

首先在不考虑温度荷载的情况下，对闸墩进行结构计算，探求裂缝出现的原因。

The good performance is related to the low work-function metal, Ytterbium, makes the threshold voltage lower successfully and small equivalent oxide thickness by high κ dielectric material.

这些良好的特性是因为拥有低功函数的镱可以成功的将临界电压降低，还有高介电系数介电层闸极可以得到较薄的等效氧化层厚度。

Balata dam applies to the brake dam project of small head, big span.

橡胶坝适用于低水头、大跨度的闸坝工程。

Velan bellows are designed for 10,000 cycles for 1/2–2"(15–50 mm) globe valves, 5000 cycles for bonnetless globe valves and 3000 cycles for 1/2–2"(15–50 mm) gate valves.

Velan波纹管设计寿命为DN15-DN50截止阀10，000次，无盖截止阀5000次，DN15-DN50闸阀3000次。

Bracker only part numbers do not allow any other options (must be Z000); available for Ball Valves only.

只有刹闸的型号不能有任何其他备选件（必须是Z000）；仅适用于球阀。

Based on the effect of the sanding on the bradenhead, the ground flow pipeline gtv and surface equipment in high pressure and high gas rate well in west Sichuan, and combination with actual engineering geologic characteristic and operation status, the paper analyzed the influencing factor of sanding in the fractured well, and put forward the countermeasures to effectively prevent sanding.

川西坳陷致密砂岩气藏拥有大量的高压高产气井，支撑剂回流出砂问题比较突出。由于气井压力高、产量高、流速快，加砂压裂后常出现支撑剂回流出砂的现象，对井口及地面流程管线闸阀、地面设备造成强烈的冲蚀破坏作用，已经严重影响到气田高压高产气井的正常生产。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。