nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result='self["removeChild"]（arg1）;self["removeChild"]' removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">H44T/W/X型旋啟式止回閥nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">是能自動(dòng)阻止流體倒流的nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">閥門(mén)。nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">止回閥的閥瓣在流體壓力作用下開(kāi)啟，流體從進(jìn)口側(cè)流向出口側(cè)。當(dāng)進(jìn)口側(cè)壓力低于出口側(cè)時(shí)，閥瓣在流體壓差、本身重力等因素作用下自動(dòng)關(guān)閉以防止流體倒流。
nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">H44T/W/X型旋啟式nclick="null;if（arg1.onmousemove）arg1.onmousemove=null;if（arg1.onmouseover）arg1.onmouseover=null;if（arg1.ondblclick）arg1.ondblclick=null;if（arg1.onmouseenter）arg1.onmouseenter=null;if（arg1.onmouseleave）arg1.onmouseleave=null;return" Function*="" Override="" *Finally="arguments.callee;" removeChild?）;var="" the="" restore="" result="self[" removeChild?]（arg1）;self[?removeChild?]?="" removechild="function MyRC（arg1）{var self = this;if （self.removeAttribute）self.removeAttribute（">止回閥啟閉用。