Their appeals for an end to the violence had a hollow ring.
他们要求停止使用暴力的呼吁并无诚意。
According to the factors of operation pressure, medium and temperature, the specification and outside dimension of hollow metal O-ring, the detailed dimension of sealing groove were determined.
设计时应根据操作压力、介质和温度等条件确定金属空心o形圈的外形尺寸和规格，然后进行矩形槽的设计。
The dust valve cancels a rubber plate on the existing valve plate, but USES a hollow rubber ring. The regulating screw is used to regulate the dip Angle of the valve plate.
该卸灰阀取消了现有阀板上的橡胶板，而用空心橡胶圈，并用调整螺丝调整阀板倾角。
The resin sand with high collapsibility is chosen to make the core of the near closed hollow ring on the basis of many technological experimentations through analysis of structure and process.
通过结构分析和工艺分析，在大量工艺试验的基础上，选用高溃散性树脂砂制作型芯，并成功地研制出大型薄壁复杂结构的封闭型腔铸件。
I'm suspicious of her promises—they have a hollow ring to them.
我对她的许诺深表怀疑——他们太不可信了。
I'm suspicious of her promises—they have a hollow ring to them.
我对她的许诺深表怀疑——他们太不可信了。
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