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Alternatively, metal foam mounting elements are set into the rifle stock during molding, and the rifle barrel and action are bolted into the metal bedding block welded to foam and set into mold prior to molding.

可选择的，金属泡沫附件在模塑期间可已安置到步枪枪托内，并且在模塑前，步枪枪管和机动部件已用螺栓固定到基衬座上，再与泡沫焊接，然后放置到模具中。

Should it be found necessary for the Contractor to move one or more loads of Constructional Plant,machinery or pre一constructed units or parts of units of work over part of a highway or bridge,the moving whereof is likely to damage any highway or bridge unless special protection or strengthening is carried out,then the Contractor shall before moving the load on to such highway or bridge give notice to the Engineer or Engineers Representative of the weight and other particulars of the load to be moved and his proposals for protecting or strengthening the said highway or bridge.

30.2如承包人必须经部分公路或桥梁一次或多次运送建筑设备、机械或工程预制件或预制部件，如不采取特殊保护和加固措施，此种运送很可能损坏公路或桥梁，承包人运送货物通过此公路或桥梁前必须通知工程师或工程师代表，告之运送货物的重量及其他具体情况，以及其拟对上述公路或桥梁采取的保护和加固措施。

Should it be found necessary for the Contractor to move one or more loads of Constructional Plant, machinery or pre-constructed units or parts of units of work over part of a highway or bridge, the moving whereof is likely to damage any highway or bridge unless special protection or strengtheningis carried out, then the Contractor shall before moving the load on to such highway or bridge give notice to the Engineer or Engineer's Representative of the weight and other particulars of the load to be moved and his proposals for protecting or strengthening the said highway or bridge.

30.2 如承包人必需经部分公路或桥梁一次或多次运送建筑设备、机械或工程预制件或预制部件，如不采取特殊保护和加固措施，此种运送很可能损坏公路或桥梁，承包人运送货物通过此公路或桥梁前必须通知工程师或工程师代表，告之运送货物的重量及其他具体情况，以及其拟对上述公路或桥梁采取的保护和加固措施。

Should-it be found necessary for the Contractor to move one or more loads of Constructional Plant , machinery or pre-constructed units or parts of units of work over part of a highway or bridge , the moving whereof is likely to damage any highway or bridge unless special protection or strengthening is carried out , then the Contractor shall before moving the load on to such highway or bridge give notice to the Engineer or Engineer's Representative of the weight and other particulars of the load to be moved and his proposals for protecting or strengthening the said highway or bridge .

如承包人必须经部分公路或桥梁一次或多次运送建筑设备、机械或工程预制件或预制部件，如不采取特殊保护和加固措施，此种运送很可能损坏公路或桥梁，承包人运送货物通过此公路或桥梁前必须通知工程师或工程师代表，告之运送货物的重量及其他具体情况，以及其拟对上述公路或桥梁采取的保护和加固措施。

2Should it be found necessary for the Contractor to move one or more loads of Constructional Plant, machinery or pre-constructed units or parts of units of work over part of a highway or bridge, the moving whereof is likely to damage any highway or bridge unless special protection or strengthening is carried out, then the Contractor shall before moving the load on to such highway or bridge give notice to the Engineer or Engineer's Representative of the weight and other particulars of the load to be moved and his proposals for protecting or strengthening the said highway or bridge.

30.2 如承包人必需经部分公路或桥梁一次或多次运送建筑设备、机械或工程预制件或预制部件，如不采取特殊保护和加固措施，此种运送很可能损坏公路或桥梁，承包人运送货物通过此公路或桥梁前必须通知工程师或工程师代表，告之运送货物的重量及其他具体情况，以及其拟对上述公路或桥梁采取的保护和加固措施。

Airports' security officers are on the lookout for terrorists practicing attacks. The alert comes after agents said several airports seized what may seem like normal items, cell phone components and a block of cheese.

机场安检人员正时刻警惕着恐怖分子的袭击，安全警报发出前，官方称在多个机场发现了可疑物，它们看似普通物品，如手机部件、一小块饼干。

So the defocus quantity is calculated by detecting the image spot position offset and the front focus plane of the collimation lens can be adjusted on the first image of the theodolite.

该方法利用半反半透镜将准直物镜后的物光折转，采用双分离透镜将目标成像到CCD上，经视频驱动、放大电路、再经A/D转换后输入到微机进行图像信号处理，这样，通过检测像的偏移量求出离焦量的大小和方向，然后驱动调焦部件使准直镜的前焦点在经纬仪的第一像面上。

Sub-models of the suspension, main and auxiliary frame and lifting mechanism were designed and assembled to be a whole dump truck model for dumping stability using Virtual Prototyping Technology.

根据自卸汽车的结构参数，应用典型虚拟样机软件分别建立前、后钢板弹簧、主、副车架及举升机构等部件样机子模型；选择合理轮胎—路面模型，建立了可分析自卸汽车作业稳定性的整车虚拟样机模型。

The key components such as drive device, feed equipment and combination roll of coal briquetting machine were improved. The bridge-type synchronous gear-drive device was designed to implement the concession of driven shaft in order to protect the costly roll. The helixes feed equipment was used to improve the plasticity of material to ensure the strength of products.

采用过桥齿轮传动实现从动型轮轴的退让，以保护价格较高的型轮部件；采用螺旋强制给料机构提高成型前物料的密度和可塑性，以保证型煤成品的强度；采用型槽与型齿对应配置的型窝，在获得同样强度的型球条件下降低成型压力，减小动力消耗。

The lifting jack go over which before being put into use component must?

千斤顶在使用前必须检查哪些部件？

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。