联系您的管道承包商，让其来进行检查，以确保安全得到保障。
Contact your plumbing contractor for a reinspection to assure continuing safety.
不要试图自己进行检查。请与您的管道承包商联系，让起来检查以确保使用安全。
DO not attempt to conduct an inspection on your own. Contact your plumbing contractor for a reinspection to assure continuing safety.
为确保设备安装正确性，本安全阀安装须由有资格证书的管道承包商或维修技术人员按照说明书及其他相应规定进行。
To ensure proper operation, this valve must be installed by a qualified service technician or licensed plumbing contractor in accordance with these instructions and local plumbing codes and standards.
整体维修工程早已开始，但因承包商拿不到工程款而停止。2004年，当地居民将新装的金属管道都扒走做工具去了。
Repairs had been started before but the contractors stopped work when they were not paid, and in 2004 locals removed many of the new metal culverts in order to fashion tools from them.
GregoryHowell讲了管道安装工的故事，他按时按预算按要求完成了任务，只是妨碍了所有后续承包商的工作。
Gregory Howell tells the story of the pipefitter, who completes his assignment on time, within budget, and well within specification, only to encumber every downstream contractor on the job.
施工现场的道路、机具、材料、临时设施、供电线路、给排水管道等的布置和管理按承包商的规定进行。
All on-site roads, machines, materials, temporary facilities, power lines, water pipelines shall be laid out and managed according to CONTRACTOR requirements.
承包商供应的设备、管道、烟风道等必须做成容许的最大尺寸以减少现场加工和安装的工作量。
The equipment pipe and air and flue gas ducts etc. supplied by the contractor shall be made in maximum allowable dimensions to reduce the fabrication on site.
此单元组包括管道和其他管道安装行业承包商，其拥有并经营自己的企业。
This unit group includes plumbing and other pipefitting trade contractors who own and operate their own businesses.
承包商应安排时间由授权检验机构对现场制作或工厂预制的管道系统进行法规检验。
Contractor shall make arrangements for code inspection on field and shop fabricated piping by an authorized inspection agency.
由工程设计承包商设计到3/4英寸、壁厚系列号为401G4管道的1/4 英寸、壁厚系列号为40S 的316SS配管接口？
Engineering contractor to design 1/4 in. Schedule 40S 316 SS piping interface to 3/4 in. Schedule 40 1G4 pipe.
此外，我们在美国南加州地区拥有12家仓储分公司，员工总数超过400人，我们的主要服务对象是管道工、工程师、建筑师和建筑承包商。
In addition, the company has twelve warehouse branches in the southern California area with more than 400 employees and primarily sells to plumbers, engineers, architects and contractors.
此外，我们在美国南加州地区拥有12家仓储分公司，员工总数超过400人，我们的主要服务对象是管道工、工程师、建筑师和建筑承包商。
In addition, the company has twelve warehouse branches in the southern California area with more than 400 employees and primarily sells to plumbers, engineers, architects and contractors.
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